Epidemiology of osteoarthritis: Zoetermeer survey. Comparison of radiological osteoarthritis in a Dutch population with that in 10 other populations.van Saase, van Romunde, Cats, Vandenbroucke, Valkenburg1989 AprTijdschriftartikel
An update on the epidemiology of knee and hip osteoarthritis with a view to prevention.Y. Zhang, Felson1998 AugTijdschriftartikel
The Tecumseh study of respiratory illness. X. Relation of acute infections to smoking, lung function and chronic symptoms.Monto, Ross1978 JanTijdschriftartikel
ASA physical status classifications: a study of consistency of ratings.Owens, Felts, Spitznagel1978 OctTijdschriftartikel