Plastic wound retractors as bacteriological barriers in gastrointestinal surgery: a prospective multi-institutional trial
Prospective Studies, Humans, Middle Aged, Male, Treatment Outcome, Abdominal Wound Closure Techniques, Surgical Wound Infection - prevention & control, Bacteria - isolation & purification, Aged, 80 and over, Bacteria - classification, Adult, Female, Aged, Surgical Wound Infection - microbiology, Digestive System Surgical Procedures - methods