1. An unusual ring injury;Drake;J Hand Surg,1977
2. Ring injury with bilateral rupture of the digital arteries without skin damage;Comtet;J Hand Surg,1979
3. Annular constriction of the penis — The tourniquet syndrome;Fiumara;JAMA,1978
4. Strangulation of the penis by a metallic nut;Tiwari;Int Surg,1977
5. Strangulation of the penis by a metallic nut;Steiner;Int Surg,1978