Córdova Guzmán, G. A. .; Ostoich Campos, V. A. .; Tauil Ortega, M. V. .; Pineda Chopite, L. del C. .; Carrillo Arcia, A. V. . Effectiveness of Breastfeeding As an Analgesic During Vaccination: A Systematic Review. Multidisciplinary & Health Educ. J. 2026, 8, 8078-8087.