Adult men’s beliefs, values, attitudes and experiences regarding contraceptives: a systematic review of qualitative studies - Hoga, Luiza Akiko Komura; Rodolpho, Juliana Reale Caçapava; Sato, Priscila M; Nunes, Michelly Christiny Marcondes; Borges, Ana Luiza Vilela (Journal of Clinical Nursing, 2014)