title: Challenges in drug utilization research. Karl Kimbel in memoriam.
authors.affiliation: Forschungsgruppe, Primärmedizinische Versorgung, Primary Health Care Research Unit, Universität Köln, Germany.
authors.forename: L
authors.initials: L
authors.lastname: von Ferber
mesh_terms: D004358:Drug Therapy; D005060:Europe; D049673:History, 20th Century; D006801:Humans