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<http://linkedlifedata.com/resource/pubmed/commentcorrection/3740993-4689004> <http://linkedlifedata.com/resource/pubmed/referenceType> "Cites" .
<http://linkedlifedata.com/resource/pubmed/commentcorrection/3740993-4689004> <http://linkedlifedata.com/resource/pubmed/referenceSource> "S Afr Med J. 1973 Feb 10;47(6):222-5" .
<http://linkedlifedata.com/resource/pubmed/commentcorrection/3740993-4689004> <http://linkedlifedata.com/resource/pubmed/referesTo> <http://linkedlifedata.com/resource/pubmed/id/4689004> .