SINGH, K.; KUMARI, R.; RANJAN, A.; BHARTI, G. Analysis of causes and clinical pattern of infertility in couples coming to a tertiary care centre in Bihar, India. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, [S. l.], v. 6, n. 6, p. 2279–2283, 2017. DOI: 10.18203/2320-1770.ijrcog20172118. Disponível em: https://www.ijrcog.org/index.php/ijrcog/article/view/2871. Acesso em: 4 oct. 2025.