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Citation |
Br. Med. J. (Clin. Res. Ed.) 1981; 283(6283): 56-57. |
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Copyright |
(Copyright © 1981, British Medical Association, Publisher BMJ Publishing Group) |
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DOI |
unavailable |
PMID |
6788264 |
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PMCID |
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Abstract |
[Abstract unavailable] Language: en |