B. C. Dámaso-Mata, C. Carbajal-Álvarez, C. Loza-Munarriz, O. Raraz-Vidal, and J. Raraz-Vidal, “Factors related to perinatal mortality in public hospital in Huanuco”, Acta Med Peru, vol. 31, no. 1, pp. 15-22, Mar. 2014.