(Q53643109)
Statements
Comparison of performance of four instruments in evaluating the effects of salmeterol on asthma quality of life (English)
M. P. Rutten-van Mölken
F. Custers
E. K. van Doorslaer
C. C. Jansen
L. Heurman
F. P. Maesen
J. J. Smeets
A. M. Bommer