Profile of Teenage Pregnancy in H. Adam Malik Hospital Medan in 2011-2015. Sumatera Medical Journal, [S. l.], v. 2, n. 2, p. 72–78, 2019. DOI: 10.32734/sumej.v2i2.1066. Disponível em: https://idjpcr.usu.ac.id/smj/article/view/1066. Acesso em: 4 feb. 2026.