article 1949 PRIMARY ENDOMETRIOSIS OF THE CERVIX UTERI Harper Hospital bulletin ·doi:10.1097/00006254-194912000-00064
article 1949 Primary Endometriosis of the Vaginal Portion of the Cervix Uteri American journal of obstetrics and gynecology ·doi:10.1016/s0002-9378(16)39234-1