Pongsritasana, T., Seejoin, K., Sinawat, S., kukiattikool, P., Tharnprisan, P., ngoksin, U. and tongpha, S. 2013. In vitro fertilization of human oocytes in Srinagarind hospital. Srinagarind Medical Journal. 21, 3 (Nov. 2013), 220–227.