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subscription/membership/fee required Atypon https://www.ajph.org/doi/10.2105/AJPH.2017.303941?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub 0pubmed
subscription/membership/fee required Ovid Technologies, Inc. http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=28817333.ui
free resource PubMed Central https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/28817333/
free resource scite Smart Citations https://scite.ai/reports/28817333