title: The two faces of medical evidence.
abstract: The dictionary definition of "evidence" is given. The meaning of evidence in the history of science is described. Clinical examples are presented to illustrate different aspects of evidence, i.e. the mechanistic versus the semiotic points of view. Evidence is explained in the light of constructivism, and suggestions are presented as to how evidence can be applied in a biopsychosocial model of medicine.
authors.forename: Rolf H
authors.initials: RH
authors.lastname: Adler
authors.forename: Thure
authors.initials: T
authors.lastname: von Uexküll
authors.forename: Jörg M
authors.initials: JM
authors.lastname: Herrmann
mesh_terms: D019317:Evidence-Based Medicine / Q000458:organization & administration*; D006801:Humans; D011584:Psychology / Q000458:organization & administration*