[1]
“Factores Sociales de la Morbimortalidad Perinatal”, CMS, vol. 16, no. 2, pp. 34–38, Jun. 1975, Accessed: Sep. 17, 2025. [Online]. Available: https://www.cms.ojstest.com/sitio%20nuevo%20ok/index.php/cms/article/view/1804