Ohboshi, N A three-layered model of nursing based on hospital observation data. [electronic resource] - Methods of information in medicine 2009 - 574-81 p. digital Publication Type: Journal Article; Research Support, Non-U.S. Gov't ISSN: 2511-705X Standard No.: 10.3414/ME9245 doi Subjects--Topical Terms: Efficiency, OrganizationalHumansJapanModels, OrganizationalNursing Staff, Hospital--organization & administrationObservation