Contraceptive discontinuation and its relation to emergency contraception use among undergraduate women in Brazil. Chofakian, Christiane Borges do Nascimento; Moreau, Caroline; Borges, Ana Luiza Vilela; Santos, Osmara Alves dos. Sexual & Reproductive Healthcare. 2019; 21: p.81-86. doi:10.1016/j.srhc.2019.06.008Article