title: [Obtaining medical ethical approval for a multicentre, randomised study: prospective evaluation of a ponderous process].
authors.forename: F H
authors.initials: FH
authors.lastname: Bosch
authors.forename: N S
authors.initials: NS
authors.lastname: Klazinga
authors.forename: B E
authors.initials: BE
authors.lastname: Schaffmeister
mesh_terms: D026724:Ethical Review; D017041:Ethics Committees / Q000458:organization & administration*; D032984:Ethics, Research; D006801:Humans; D016032:Randomized Controlled Trials as Topic; D013997:Time Factors