1. Is a mask necessary in the operating theatre?;Orr;Ann R Coll Surg Engl,1981
2. Changing knives—a wasteful and unnecessary procedure;Hill;Ann R Coll Surg Engl,1985
3. Abdominal wound closure—A comparison of monofilament nylon and polyglycolic acid;Bucknall;Surgery,1981
4. Incisional hernias: When do they occur?;Ellis;Br J Surg,1983