title: Reply: Feasibility and ethics.
authors.affiliation: 1 University of Colorado Denver, Colorado.
authors.forename: Richard K
authors.initials: RK
authors.lastname: Albert
mesh_terms: D057186:Comparative Effectiveness Research / Q000379:methods*; D003657:Decision Making; D006801:Humans; D019370:Observation / Q000379:methods*; D012107:Research Design