Johansson Å

IMPORTANCE: Hormonal contraceptives are widely used but how breast cancer risk differs by hormonal content remains unclear. OBJECTIVE: To estimate the difference in breast cancer risk associated with different hormonal contraceptive formul…

AIM: Research on the effect of oral contraceptive (OC) use on the risk of depression shows inconsistent findings, especially in adult OC users. One possible reason for this inconsistency is the omission of women who discontinue OCs due to a…