Bergstra, Sytske Anne
Markusse, Iris M.
Akdemir, Gülşah
Ronday, H. Karel
Han, K. Huub
Lems, Willem F.
Kerstens, Pit J. S. M.
van den Berg, Rosaline
Landewé, Robert B. M.
Allaart, Cornelia F.
Funding for this research was provided by:
Janssen B.V.
Schering-Plough B.V.
Dutch College of Health Insurance Companies