title: Levels of theoretical thinking in nursing.
authors.affiliation: Frances Pyne Bolton School of Nursing, Case Western Reserve University, Cleveland, Ohio.
authors.forename: P A
authors.initials: PA
authors.lastname: Higgins
authors.forename: M M
authors.initials: MM
authors.lastname: Shirley
mesh_terms: D019317:Evidence-Based Medicine; D006801:Humans; D007587:Job Description; D019359:Knowledge; D016294:Models, Nursing; D009736:Nursing Process; D015399:Nursing Research / Q000458:organization & administration*; D009742:Nursing Theory; D009626:Terminology as Topic; D013850:Thinking