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Abstract
Entities: Species
Mesh： See more » AgedAged, 80 and overFemaleHospital MortalityHospitals, TeachingHumansInternal Medicine/educationInternal Medicine/standardsInternship and Residency/legislation & jurisprudenceMalePersonnel Staffing and Scheduling/legislation & jurisprudenceRetrospective StudiesRisk FactorsSensitivity and SpecificitySurgical Procedures, Operative/mortalityUnited StatesWork Schedule Tolerance
Year: 2007 PMID： 17548402
Source DB: PubMed Journal: Ann Intern Med ISSN： 0003-4819 Impact factor: 25.391