<http://linkedlifedata.com/resource/pubmed/commentcorrection/2921049-6893939> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://linkedlifedata.com/resource/pubmed/CommentsCorrections> .
<http://linkedlifedata.com/resource/pubmed/commentcorrection/2921049-6893939> <http://linkedlifedata.com/resource/pubmed/referenceType> "Cites" .
<http://linkedlifedata.com/resource/pubmed/commentcorrection/2921049-6893939> <http://linkedlifedata.com/resource/pubmed/referenceSource> "Br J Obstet Gynaecol. 1981 Feb;88(2):174-80" .
<http://linkedlifedata.com/resource/pubmed/commentcorrection/2921049-6893939> <http://linkedlifedata.com/resource/pubmed/referesTo> <http://linkedlifedata.com/resource/pubmed/id/6893939> .