Institution: | (1) Department of Clinical Epidemiology. Biostatistics and Bioinformatics, Academic Medical Centre, University of Amsterdam, P.O. Box 22660, 1100 DD Amsterdam, the Netherlands;(2) Department of Medicine, Academic Medical Centre, University of Amsterdam, P.O. Box 22660, 1100 DD Amsterdam, the Netherlands;(3) Department of Clinical Chemistry, Netherlands Cancer Institute, P.O. Box 90203, 1006 BE Amsterdam, the Netherlands |