[Model concepts of drug demand research on the GDR domestic market].
D005859:Germany, East; D006801:Humans; D007256:Information Systems; D008962:Models, Theoretical; D004364:Pharmaceutical Preparations / Q000600:supply & distribution*
D004364:Pharmaceutical Preparations
Modellvorstellungen zur Arzneimittel-Bedarfsforschung auf dem Binnenmarkt der DD.