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412 15 Asphyxial Deaths components may play a major role in death. A third neck component that deserves mention is the “carotid body,” which is a specialized group of cells within the wall of the carotid artery that, when stimulated, for example by pressure, can result in significant changes in heart rhythm and rate, as well as blood pressure. Classically, there are three subtypes of strangulation: hanging, ligature strangulation, and manual strangulation. These are described below, along with some variations that do not fit any of these three categories. It should be noted that certain individuals consider hanging deaths to be distinct from strangulation, whereas others consider hanging to be a subtype of strangulation death. Hanging The term “hanging” refers to a neck compression situation where the person’s own body weight (or part of their body weight) contributes to the compressive force on the neck. Most hanging deaths involve a “ligature,” something that either completely or partially encircles the neck. When the ligature only partially encircles the neck, the front (anterior) and front-sides (anterolateral) of the neck are typically in contact with the ligature. Ligatures are usually flexible, relatively narrow (so that pressure can be relatively focused on the neck), and fairly sturdy (strong). For an asphyxial hanging death to occur, it is not necessary for the body to be completely suspended (with feet off the ground) (Fig. 15.10). In fact, partial suspension hangings, in which the feet (or other body parts) are touching the ground, are quite common (Fig. 15.11). In many of these, it is likely that the original intent of the individual was a full-suspension hanging, but because of stretching of the ligature, the victim’s feet are actually touching the ground when the body is discovered. There is frequently an object adjacent to the body that the victim stood upon to affix the ligature to an overhead object (Disc Image 15.13). The pressure necessary Fig. 15.10 An example of a full-suspension hanging death, with the feet totally off the ground
Neck Compression (Strangulation) 413 Fig. 15.11 An example of a partial-suspension hanging death, with the feet touching the ground to compress and totally occlude the jugular veins is said to be around 4–5 pounds, compared to about 9–11 pounds for the carotid arteries, around 33 pounds for the trachea, and about 66 pounds for the vertebral arteries. As mentioned above, ligatures can be quite variable. Examples include ropes, belts, scarves, bedsheets, clothing, shoelaces, and electrical cords, although anything that can be looped around the neck could theoretically act as a ligature (Figs. 15.12 Fig. 15.12 An example of a hanging death, with a rope used as a ligature
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Forensic Pathology for Police, Deat
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Joseph Prahlow Indiana University S
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vi Dedication accepted the free gif
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viii Foreword quality photographs i
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x Acknowledgements Counties, as wel
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Contents Part I Introductory Topics
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Contents xv Hepatobiliary System .
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Contents xvii RespiratorySystem....
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Contents xix Mercury ..............
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Contents xxi Strangulation . ......
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Contents xxiii Negligence/Neglect .
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About the Author Joseph A. Prahlow,
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Chapter 1 Introduction to Pathology
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Introduction to Pathology 5 Table 1
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Introduction to Pathology 7 Fig. 1.
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Introduction to Pathology 9 Fig. 1.
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Introduction to Pathology 11 Fig. 1
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Introduction to Pathology 13 Fig. 1
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Selected References 15 Disc Image L
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18 2 Introduction to Forensic Scien
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Chapter 3 Introduction to Forensic
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Duties of the Forensic Pathologist
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Training and Qualifications of Fore
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Training and Qualifications of Fore
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Selected References 47 Selected Ref
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50 4 Death Investigation Death Inve
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52 4 Death Investigation met in ord
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54 4 Death Investigation leading to
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56 4 Death Investigation Fig. 4.2 A
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58 4 Death Investigation Fig. 4.5 P
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60 4 Death Investigation Fig. 4.9 I
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62 4 Death Investigation apartment
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64 5 Death Certification Fig. 5.1 A
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66 5 Death Certification Fig. 5.4 A
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68 5 Death Certification latter, th
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70 5 Death Certification infrequent
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72 5 Death Certification changes in
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74 5 Death Certification suicides.
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76 5 Death Certification death is i
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78 5 Death Certification use involv
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Chapter 6 Overview of Anatomy and P
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Introduction 83 Table 6.1 (continue
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Introduction 89 Term Definition Tab
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Introduction 91 “mucous membranes
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Specific Organ Systems 93 functions
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Specific Organ Systems 95 Fig. 6.2
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Specific Organ Systems 97 Microscop
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Specific Organ Systems 107 respirat
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Specific Organ Systems 111 water co
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Specific Organ Systems 115 Platelet
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Disc Image Legends 125 Disc Image 6
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Part II General Topics in Forensic
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130 7 The Postmortem Forensic Exami
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Chapter 8 Postmortem Changes and Ti
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Early Postmortem Changes 165 Fig. 8
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Early Postmortem Changes 167 can be
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Decomposition 169 exposed to sunlig
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Decomposition 171 Fig. 8.8 As decom
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Decomposition 173 Fig. 8.12 As deco
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Decomposition 175 Fig. 8.16 If flie
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Postmortem Injuries 177 Fig. 8.20 I
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Time of Death Estimation 179 Time o
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Time of Death Estimation 181 Fig. 8
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Chapter 9 Identification of Human R
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Introduction 187 Fig. 9.2 Badly dec
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Common, Non-scientific Methods of I
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Scientific Methods of Identificatio
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Scientific Methods of Identificatio
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Identification Based on Other Uniqu
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Identification Based on Other Uniqu
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Unidentified Remains 199 Fig. 9.16
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Selected References 201 Disc Image
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Chapter 10 Natural Deaths One man d
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Infectious Disease 207 to as “hyp
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Cardiovascular System 209 refers to
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Cardiovascular System 211 related t
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Cardiovascular System 213 heart int
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Cardiovascular System 215 Aortic An
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Cardiovascular System 217 Vasculiti
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Cardiovascular System 219 Valve Dis
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Cardiovascular System 221 Fig. 10.1
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Central Nervous System 223 Neoplast
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Central Nervous System 225 Viral en
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Central Nervous System 227 Spontane
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Respiratory System 229 Fig. 10.18 T
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Respiratory System 231 Pulmonary Th
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Respiratory System 233 identificati
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Respiratory System 235 Chronic Lung
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Gastrointestinal and Hepatobiliary
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Gastrointestinal and Hepatobiliary
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Reticuloendothelial and Immune Syst
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Endocrine System 243 infection, dis
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Multisystem and Other Disorders 245
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Selected References 255 Fineschi V,
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258 11 Drug-Related and Toxin-Relat
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Chapter 12 Blunt Force Injury Death
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Classification of Blunt Force Injur
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Blunt Force Head and Neck Trauma 31
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Special Topics Related to Blunt For
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Selected References 335 Toro K, Szl
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338 13 Gunshot Wound Deaths shotgun
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340 13 Gunshot Wound Deaths Fig. 13
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346 13 Gunshot Wound Deaths targets
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348 13 Gunshot Wound Deaths (a) (b)
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350 13 Gunshot Wound Deaths Image 1
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354 13 Gunshot Wound Deaths Miscell
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Page 417 and 418: Special Issues 391 Defensive Wounds
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Page 425 and 426: Selected References 399 Disc Image
Page 427 and 428: Chapter 15 Asphyxial Deaths So Juda
Page 429 and 430: Suffocation 403 Fig. 15.1 Petechiae
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Page 457: Selected References 431 Prahlow JA,
Page 460 and 461: 434 16 Drowning Physiology and Mech
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462 17 Electrical Deaths Fig. 17.20
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464 17 Electrical Deaths Fig. 17.24
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466 17 Electrical Deaths Disc Image
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Chapter 18 Temperature-Related Deat
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Hypothermia 471 constrict, thus con
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Hypothermia 473 Fig. 18.3 Prominent
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Hyperthermia 475 Toxicology testing
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Hyperthermia 477 Fig. 18.8 A 24-yea
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Selected References 479 disease. In
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Chapter 19 Burns and Fire-Related D
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Introduction 483 Fig. 19.3 Example
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Burn Types 485 Fig. 19.5 A postmort
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Burn Types 487 Chemical Burns As me
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Fire Deaths 489 Fire burns represen
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Fire Deaths 491 Fig. 19.11 Dense so
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Fire Deaths 493 Fig. 19.13 Multiple
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Fire Deaths 495 a CO test or an ins
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Fire Deaths 497 Fig. 19.20 Atrue an
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Disc Image Legends 499 Disc Image L
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Chapter 20 Deaths in Infancy and Ch
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Discarded Fetuses/Infants and Fetal
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Discarded Fetuses/Infants and Fetal
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Birth-Related Infant Deaths 507 abr
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Infant Deaths 509 Fig. 20.3 A diaph
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Infant Deaths 511 Fig. 20.6 The pre
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Natural Death in Childhood 513 path
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Accidental Childhood Deaths 515 pon
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Homicidal Childhood Deaths 517 occu
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Homicidal Childhood Deaths 519 Fig.
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Homicidal Childhood Deaths 521 in a
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Classification of Childhood Homicid
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Pediatric Autopsy Considerations 53
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Disc Image Legends 535 Disc Image L
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Selected References 537 Selected Re
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540 21 Miscellaneous Topics Aircraf
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542 21 Miscellaneous Topics CAMI to
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544 21 Miscellaneous Topics To summ
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546 21 Miscellaneous Topics typical
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548 21 Miscellaneous Topics quite o
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550 21 Miscellaneous Topics Fig. 21
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552 21 Miscellaneous Topics The emb
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554 21 Miscellaneous Topics various
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556 21 Miscellaneous Topics stress
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560 21 Miscellaneous Topics ampheta
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562 21 Miscellaneous Topics victim
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564 21 Miscellaneous Topics more se
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568 21 Miscellaneous Topics Organ a
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572 21 Miscellaneous Topics region
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574 21 Miscellaneous Topics Regardi
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576 21 Miscellaneous Topics and lar
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578 21 Miscellaneous Topics some wo
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580 21 Miscellaneous Topics Non-ion
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582 21 Miscellaneous Topics Yersini
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584 21 Miscellaneous Topics water (
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586 21 Miscellaneous Topics to gene
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588 21 Miscellaneous Topics Disc Im
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590 21 Miscellaneous Topics Leclair
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Appendix: Additional Resources and
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Index Note: The letters ‘f’ and
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Index 597 Arnold-Chiari malformatio
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Index 599 closed head injuries, 311
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Index 601 immediate, 68 intermediar
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Index 603 liver demonstrating cirrh
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Index 605 Death investigation syste
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Index 607 pressure related processe
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Index 609 bridging veins, 316 dura
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Index 611 brain, serially-sectioned
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Index 613 Gestational DM, 247 Gesta
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Index 615 Homicide(s), 444 by heart
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Index 617 Infant death, 501-502, 50
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Index 619 Material Safety Data Shee
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Index 621 CNS, 223-229 cerebral pal
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Index 623 Over-the-counter (OTC), 2
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Index 625 Pregnancy-related materna
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Index 627 industrial settings, 486
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Index 629 Smoke and soot inhalation
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Index 631 Thrombophlebitis, inflamm
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