Issues in clinical trial design. II: Selection of end point measures.
Bromberg
M B
MB
Department of Neurology, University of Utah, Salt Lake City 84132, USA.
Brooks
B R
BR
D000690:Amyotrophic Lateral Sclerosis / Q000503:physiopathology*; D002986:Clinical Trials as Topic; D006801:Humans; D012107:Research Design