The profession in a class by itself.
D004508:Education, Nursing, Baccalaureate / Q000266:history; D006676:History of Nursing; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D007062:Identification, Psychological; D008962:Models, Theoretical; D009726:Nurses / Q000523:psychology; D009729:Nursing; D012380:Role; D014481:United States; D014495:Universities / Q000266:history; D014931:Women, Working