title: The puristic researcher and the persuasive opinion leader--contrast, complement or two sides of the same coin?
authors.forename: K
authors.initials: K
authors.lastname: Hecher
mesh_terms: D005260:Female; D006801:Humans; D011247:Pregnancy; D012106:Research / Q000592:standards*; D012107:Research Design; D014463:Ultrasonography; D016216:Ultrasonography, Prenatal