Sánchez, Leisy. “Level of Knowledge of Newborn Mothers Pretemption about the Care That American Has to Its Expiry. Service of Neonatal Pathology. Hospital Central "Antonio María Pineda"”. Red De Investigación Educativa, vol. 4, no. 2, July 2018, pp. 10 -33, https://revistas.uclave.org/index.php/redine/article/view/1359.