title: Role of middle range theory for nursing research and practice. Part I. Nursing research.
authors.affiliation: Columbia University School of Nursing, USA.
authors.forename: E R
authors.initials: ER
authors.lastname: Lenz
mesh_terms: D006801:Humans; D019359:Knowledge; D016294:Models, Nursing; D009732:Nursing Care / Q000458:organization & administration*; D015399:Nursing Research / Q000458:organization & administration*; D009742:Nursing Theory; D012107:Research Design; D012586:Science