1. Araki, Tsutomu. (2010). The Latest Obstetrics -Normal Pregnant Woman (22). pp.309-312, Tokyo: BUNKODO.
2. Dicle, O. Kucukler, C., Pirnar, T., Erata, Y., Posaci, C. (1997). Magnetic resonance imaging evaluation of incision healing after cesarean sections. European radiology, 7(1), 31-34.
3. Fletcher, S., Grotegut, C.A., James, A.H. (2012). Lochia Patterns Among Normal Women: A Systematic Review. Journal of Women's Health, 21(12), 1290-1294.
4. Fujita, M., Manabe, E., Morooka, T. (1994). A Factor Examination of the Postpartum Involution of Uterus. Bulletin of College of Medical Technology Kyoto Prefectural University of Medicine, 4(1), 65-68.
5. Higuchi, T., Ban, C., Hayashi, K., Yoshida, M., Mori, T. (1989). Kounen shosanpu no toriatukai ni kansuru kousatsu. Perinatal medcine (Tokyo), 19(7), 983-987.