Methods and models in health-related quality of life (HRQOL) research: a state-of-the-art review.
Berzon
Richard
R
CD Health Economics, Boehringer Ingelheim Pharmaceuticals Inc., 900 Ridgebury Road, Ridgefield, CT 06877-0368, USA. rberzon@rdg.boehringer-ingelheim.com
Alonso
Jordi
J
Fayers
Peter
P
Scott
Jane
J