1. Current concepts in obstetrics and gynecology;Richart;N Engl J Med,1980
2. Management of the patient with an abnormal Pap smear;Ferenczy,1981
3. Cryosurgery of CIN;Hatch;Obstet Gynecol,1981
4. Cryosurgery treatment of CIN;Ostergard;Obstet Gynecol,1980
5. Cryosurgery in the management of CIN;Creasman;Obstet Gynecol,1984