title: [Problems of the categories requirement--necessity, and need].
mesh_terms: D003191:Comprehensive Health Care; D004470:Economics, Medical; D005859:Germany, East; D006285:Health Planning; D006801:Humans; D008019:Life Style; D012950:Socialism; D013222:State Medicine
vernacular_title: Zur Problematik der Kategorien Erfordernis--Bedürfnis und Bedarf