Junior researcher, Department of Clinical Psychology, Utrecht University, Utrecht, The Netherlands.

… → 1987

Adjunct Professor, Faculty of Sports and Health Sciences, University of Jyväskylä, Finland

Director, Institute of Health Care and Welfare Studies, Amsterdam

… → 2007

Distinguished Professor, Jining Medical University, Jining, China

… → 2017

Head research department, Netherlands institute of Health Services Research

… → 2001

Senior researcher, Netherlands institute of Health Services Research

… → 1995

Senior Advisor, Polytechnic Amsterdam, Amsterdam

… → 2000

Senior Advisor, Reade Centre for Rehabilitation and Rheumatology, Amsterdam, Netherlands

… → 2016

Adjunct Professor, The Chinese University of Hong Kong, Shenzhen

Senior researcher, WHO Collaborating Center on Quality of Life in Relation to Health Care, Amsterdam

… → 1988