1. Morbidity associated with vasectomy;Esho;J. Urol.,1973
2. Office vasectomy: review of 500 cases;Kase;Urology,1973
3. Vasectomy without complication;Bennett;Urology,1976
4. Vasectomy: a review of 3,200 operations;Livingstone;Canad. Med. Assoc. J.,1971
5. Complications of 2,711 vasectomies;Leader;J. Urol.,1974