Nasal carriage of Staphylococcus aureus is a major risk factor for surgical-site infections in orthopedic surgery. - Kalmeijer,M.D.; van Nieuwland-Bollen,E.; Bogaers-Hofman,D.; de Baere,G.AJ.; Kluytmans,J.AJW. (Infect Control Hosp Epidemiol, 2000)