1. Pilonidal sinus: treatment by primary closure;Holman;Surg Gynaecol Obstet,1946
2. Management of pilonidal sinus by excision and primary closure;Mandel;Surg Gynaecol Obstet,1972
3. A technique of radical excision of pilonidal disease with primary closure;Casten;Surgery,1973
4. A new operation for pilonidal sinus;Marshall;Asian H Med,1973