title: AN IMPROVED SURGICAL RETRACTOR.
mesh_terms: D000005:Abdomen; D034841:Abdominal Cavity; D001062:Appendectomy; D006801:Humans; D008866:Microsurgery; D013525:Surgical Instruments; D013514:Surgical Procedures, Operative
keywords: ABDOMEN; APPENDECTOMY; SURGERY, OPERATIVE; SURGICAL INSTRUMENTS