1. Evaluation of punch biopsy of cervix under colposcopic observation. (Target punch biopsy);Beller;Obstet. Gynecol.,1966
2. Treatment of cervicitis by the carbon dioxide snow cauterization method;Bobrow;Obstet. Gynecol.,1961
3. Cryosurgery of the uterine cavity;Cahan;Am. J. Obstet. Gynecol.,1967
4. Cryosurgical treatment of uterine cervicitis. Preliminary report;Collins;Bull. Mill. Fill. Hosp.,1966
5. Cryosurgery for benign cervicitis and follow up of six and one half years;Collins;Am. J. Obstet. Gynecol.,1972