title: Clinical trials in progressive neurological diseases. Recruitment, enrollment, retention and compliance.
authors.forename: Richard S
authors.initials: RS
authors.lastname: Bedlack
authors.forename: Merit E
authors.initials: ME
authors.lastname: Cudkowicz
mesh_terms: D002986:Clinical Trials as Topic / Q000379:methods*; D018450:Disease Progression; D009422:Nervous System Diseases / Q000628:therapy*; D010349:Patient Compliance; D018579:Patient Selection