Gastrointestinal prophylaxis for COVID-19: an illustration of severe bias arising from inappropriate comparators in observational studies

por Lin, Kueiyu Joshua, Feldman, William B., Wang, Shirley V., Pramod Umarje, Siddhi, D'Andrea, Elvira, Tesfaye, Helen, Zabotka, Luke E., Liu, Jun, Desai, Rishi J.
Publicado 2022