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American journal of public health [Am J Public Health] 1971 Jun; Vol. 61 (6), pp. 1236-44.Publisher: American Public Health Association Country of Publication: United States NLM ID: 1254074 Publication Model: Print Cited Medium: Print
Source:
The Practitioner [Practitioner] 1970, pp. Suppl 11:18+.Publisher: Practitioner Medical Pub Country of Publication: England NLM ID: 0404245 Publication Model: Print Cited Medium: Print ISSN: 0032-6518
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The Health service journal [Health Serv J] 1988 Aug 18; Vol. 98 (5114), pp. suppl 7.Publisher: Emap Healthcare Ltd Country of Publication: England NLM ID: 8605800 Publication Model: Print Cited Medium: Print ISSN: 0952-2271