Kim H, Nava-Ocampo A, Kim, et al. S. Is prenatal childbirth preparation effective in decreasing adverse maternal and neonatal response to labor? A nested case-control study. Acta Biomed. 2008;79(1):18-22. Accessed February 24, 2025. https://mattioli1885journals.com/index.php/actabiomedica/article/view/1853