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Abstract
Mesh: See more » Age FactorsAgedFamily PracticeFemaleHospitalizationHumansMaleMiddle AgedOutpatient Clinics, HospitalSmokingState MedicineUnited Kingdom
Year: 1973 PMID: 4714464 PMCID: PMC1589569 DOI: 10.1136/bmj.2.5865.503
Source DB: PubMed Journal: Br Med J ISSN: 0007-1447