title: Development of therory: a requisite for nursing as a primary health profession.
mesh_terms: D001291:Attitude of Health Personnel; D002755:Choice Behavior; D004506:Education, Nursing; D005069:Evaluation Studies as Topic; D006281:Health Occupations; D006676:History of Nursing; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D008962:Models, Theoretical; D009729:Nursing; D009732:Nursing Care; D010687:Philosophy, Nursing; D012106:Research; D012586:Science / Q000266:history; D014481:United States