[1]
T. Vutyavanich, C. Uttavichai, P. Pongsuthirak, A. Oranratnachai, W. Ittipunkul, and W. Piromlertamorn, “Preliminary Experiences with IVF & ET at Maharaj Nakorn Chiang Mai Hospital ”, Thai J Obstet Gynaecol, vol. 4, no. 1, pp. 23–32, Jun. 1992.