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Full text available at:
BMJ Journals
Available from 1944 volume: 7 issue: 3.
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BMJ Journals Online Archive Free
Available from 1920 issue: 1 until 2005.
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Journals@Ovid
Available from 2001 volume: 70 issue: 2 until 2009 volume: 80 issue: 1.
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PubMed Central
Available from 1944 volume: 7 until 2007 volume: 78 issue: 12.