title: Issues in evaluating health websites in an Internet-based randomized controlled trial.
authors.forename: Gunther
authors.initials: G
authors.lastname: Eysenbach
mesh_terms: D035061:Control Groups; D003695:Delivery of Health Care / Q000379:methods* / Q000639:trends*; D005069:Evaluation Studies as Topic; D006801:Humans; D020407:Internet; D016032:Randomized Controlled Trials as Topic / Q000379:methods*; D012107:Research Design; D016896:Treatment Outcome