Prospective controlled cohort study on the safety of a monophasic oral contraceptive containing nomegestrol acetate (2.5mg) and 17β-oestradiol (1.5mg) (PRO-E2 study): risk of venous and arterial thromboembolism - Reed, S; Koro, C; DiBello, J (Eur J Contracept Reprod Health Care, 2021)