Conditioning on future exposure to define study cohorts can induce bias: the case of low-dose acetylsalicylic acid and risk of major bleeding

por Lund, Jennifer L, Horváth-Puhó, Erzsébet, Komjáthiné Szépligeti, Szimonetta, Sørensen, Henrik Toft, Pedersen, Lars, Ehrenstein, Vera, Stürmer, Til
Publicado 2017