PHS Session 13 - Epidemiologic uses of surveillance data, Part 1
49:54
PHS session 14 - Epidemiologic Uses of Surveillance Data II
26:48
PHS Session 2B - Principles of Public Health Surveillance: Attributes of Surveillance Systems
48:29
PHS Session 2A - Principles of Public Health Surveillance: Establishing a Surveillance System
58:26
How to choose outcomes in implementation research
21:01
Watch Trudeau speak directly to Trump during blistering speech
3:25:28
50 chefs-d'œuvre de musique classique pour la relaxation et l'âme | Beethoven, Mozart, Chopin, Bach,
22:07
50 ans d’erreurs médicale : l’histoire dingue de la tendinite
11:39