SimilarityRank
MEDLINE 0.844 98555
PubMed 0.804 49175
Elsevier 0.718 55357
full-text 0.709 53552
ProQuest 0.704 98606
Medscape 0.701 96501
JAMA 0.671 53150
NCI 0.662 53723
bibliographic 0.654 45374
PMID 0.651 86550
BMJ 0.641 65609
ACS 0.637 26125
Cochrane 0.633 35235
NEJM 0.633 95648
LexisNexis 0.631 79110
peer-reviewed 0.623 25104
Thesaurus 0.619 88890
Lancet 0.619 38806
Merck 0.618 28101
Lexis 0.616 96130
Databases 0.612 46848
Clearinghouse 0.611 60386
ERIC 0.611 74604
meta-analysis 0.609 39189
WebMD 0.607 34207