S. Takeda, M. Saitoh, K. Kuromaki, S. Takada, K. Kinoshita, and S. Sakamoto, “The Effect of a Thromboxane Synthetase Inhibitor, Sodium Ozagrel, on Pregnancy-induced Hypertension”, Thai J Obstet Gynaecol, vol. 3, no. 1, pp. 39–44, Jan. 1991.