title: Technology assessment and the "learning contamination" bias.
authors.forename: M F
authors.initials: MF
authors.lastname: Roizen
authors.forename: A
authors.initials: A
authors.lastname: Toledano
mesh_terms: D004452:Echocardiography; D006439:Hemodynamics; D006801:Humans; D016343:Monitoring, Intraoperative; D015337:Multicenter Studies as Topic