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<http://linkedlifedata.com/resource/pubmed/commentcorrection/2766172-4452923> <http://linkedlifedata.com/resource/pubmed/referenceType> "Cites" .
<http://linkedlifedata.com/resource/pubmed/commentcorrection/2766172-4452923> <http://linkedlifedata.com/resource/pubmed/referenceSource> "J Obstet Gynaecol Br Commonw. 1974 Dec;81(12):956-67" .
<http://linkedlifedata.com/resource/pubmed/commentcorrection/2766172-4452923> <http://linkedlifedata.com/resource/pubmed/referesTo> <http://linkedlifedata.com/resource/pubmed/id/4452923> .