1. Surgery of the anus, rectum and colon;Goligher,1980
2. A new concept of the anatomy of the anal sphincter mechanism and the physiology of defaecation. X. Anorectal sinus and band: anatomic nature and surgical significance;Shafik;Dis Colon Rectum,1980
3. A new concept of the anatomy of the anal sphincter mechanism and the physiology of defaecation. V. The rectal neck: anatomy and function;Shafik;Chir Gastroenterol,1977
4. A new concept of the anatomy of the anal sphincter mechanism and the physiology of defaecation. I. The external anal sphincter: a triple-loop system;Shafik;Invest Urol,1975
5. A new concept of the anatomy of the anal sphincter mechanism and the physiology of defaecation. II. Anatomy of the levator ani muscle with special reference to puborectalis;Shafik;Invest Urol,1975