Takahashi, Regina Toshie, and Isilia Aparecida Silva. “The Integrations Between "Obstetrical Nursing" and ‘ Maternity Nursing Service Administration’”. Revista Da Escola De Enfermagem Da USP, vol. 26, no. 3, Dec. 1992, pp. 355-8, https://doi.org/10.1590/0080-6234199202600300355.