Baseline assessments in amyotrophic lateral sclerosis trials.
Bossuyt
P M
PM
Academic Medical Center, Department of Clinical Epidemiology and Biostatistics, University of Amsterdam, Netherlands.
Louwerse
E S
ES
Weverling
G J
GJ
de Jong
J M
JM
D000690:Amyotrophic Lateral Sclerosis / Q000188:drug therapy / Q000628:therapy*; D006801:Humans; D017063:Outcome Assessment, Health Care; D011379:Prognosis; D011446:Prospective Studies; D014797:Vital Capacity