Introduzione al corso - Clinica malattie apparato respiratorio
Introduzione al corso - Clinica malattie apparato respiratorio
Introduzione al corso - Clinica malattie apparato respiratorio
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Levels of evidence<br />
Level<br />
A<br />
B<br />
C<br />
Source<br />
Randomized clinic<strong>al</strong> tri<strong>al</strong>s<br />
(RCT). Sever<strong>al</strong>, consistent<br />
Randomized clinic<strong>al</strong> tri<strong>al</strong>s<br />
(RCT). Few, inconsistent<br />
Non-randomized clinic<strong>al</strong><br />
tri<strong>al</strong>s. Sm<strong>al</strong>l and/or<br />
observation<strong>al</strong> studies<br />
D<br />
Opinion of experts
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