16  III) Observational studies (2) Case control study
Channel: Dr. Saleh Bahaj
Date: 2019-08-08

PowerPoint:
https://docs.google.com/presentation/d/1mDNQg_43Sm0TjFq29NQbVK0kPW2VvFxF/edit?usp=sharing&ouid=101785136857849032702&rtpof=true&sd=true