sub:provenance {
  beldoc: dce:description "Approximately 2000 hand curated statements drawn from 57 PubMeds." ;
    dce:rights "Copyright (c) 2011-2012, Selventa. All Rights Reserved." ;
    dce:title "BEL Framework Small Corpus Document" ;
    dc:license "Creative Commons Attribution-Non-Commercial-ShareAlike 3.0 Unported License" ;
    pav:authoredBy sub:_5 ;
    pav:version "1.6" .
  sub:_4 prov:value """α2β1 integrins have been reported to be the major receptor responsible for attachment
of HB2 cells to collagen.9,24 We found, however, that adhesion of HB2 cells
to collagen was decreased by less than 50% in the presence of an anti-β1 integrin
Ab (Fig. 3a), which indicates that, in addition to engagement of β1 integrins,
at least 1 other mechanism must be involved in adherence of these cells to collagen.""" ;
    prov:wasQuotedFrom pubmed:12471617 .
  sub:_5 rdfs:comment "support@belframework.org" ;
    rdfs:label "Selventa" .
  sub:assertion prov:hadPrimarySource pubmed:12471617 ;
    prov:wasDerivedFrom beldoc: , sub:_4 .
}