title: How useful are retrospective studies in evaluating therapeutic interventions?
authors.forename: Dan H
authors.initials: DH
authors.lastname: Moore
mesh_terms: D000690:Amyotrophic Lateral Sclerosis / Q000401:mortality / Q000628:therapy*; D015331:Cohort Studies; D005260:Female; D006801:Humans; D008131:London / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D008954:Models, Biological; D015233:Models, Statistical; D015999:Multivariate Analysis; D011379:Prognosis; D012107:Research Design; D012189:Retrospective Studies; D019782:Riluzole / Q000627:therapeutic use; D012307:Risk Factors; D016019:Survival Analysis; D016896:Treatment Outcome
chemical_list: D019782:Riluzole