Silva NCB da, Bomfim T, Cardozo NP, Franco MAP, Marques SL. Proposal of an instrument to evaluate youths’ knowledge on contraceptive methods . Paidéia (Ribeirão Preto) [Internet]. 2007 Dec. 1 [cited 2024 Nov. 24];17(38):365-74. Available from: https://journals.usp.br/paideia/article/view/6443