Cho, J., Ahn, H. Y., Ahn, S., Lee, M. S., & Hur, M.-H. (2012). Effects of Oketani Breast Massage on Breast Pain, the Breast Milk pH of Mothers, and the Sucking Speed of Neonates. Korean Journal of Women Health Nursing, 18(2), 149. https://doi.org/10.4069/kjwhn.2012.18.2.149