title: [Health sciences--health occupations: lay systems--professional systems].
authors.forename: R
authors.initials: R
authors.lastname: Jens
mesh_terms: D001317:Austria; D005544:Forecasting; D006801:Humans; D009313:National Health Programs / Q000639:trends*; D010348:Patient Care Team / Q000639:trends*; D011634:Public Health / Q000639:trends*