Myron R. Melamed, Leopold G. Koss, Betty J. Flehinger, Richard P. Kelisky, Hilliard Dubrow
Melamed M R, Koss L G, Flehinger B J, Kelisky R P, Dubrow H.
Prevalence Rates of Uterine Cervical Carcinoma in situ for Women Using the Diaphragm or Contraceptive Oral Steroids
Br Med J 1969; 3 :195
doi:10.1136/bmj.3.5664.195