Concomitant medication use and its implications on the hazard pattern in pharmacoepidemiological studies: example of antidepressants, benzodiazepines and fracture risk . ebph [Internet]. 2022 May 6 [cited 2026 Jul. 28];12(3). Available from: https://test-ojs-unimi-it.archicoop.it/index.php/ebph/article/view/17786