1. Multivariable analysis in diagnosis of abortions by placental functions and ultrasonic findings;Chiba;Acta Obstet Gynecol Jpn,1975
2. Radioimmunoassay of human chorionic gonadotropin and lutenizing hormone;Tanizawa;Med J Osaka Univ,1967
3. Studies on “RCC-HPL Immunoassay Kit;Tanizawa;Nuclear Med,1976
4. Studies on “Progesterone RIA Kit” using 125I labelled progesterone;Hisa;The World of Obstetrics and Gynecology,1977
5. Evaluation of the prognosis of threatened abortion from the peripheral plasma levels of progesterone, estradiol and human chorionic gonadotropin;Nygren;Am J Obstet Gynecol,1973