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subscription/membership/fee required Ovid Technologies, Inc. http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=29603147.ui
free resource PubMed Central https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/29603147/
free resource Europe PubMed Central https://europepmc.org/abstract/MED/29603147
free resource Wiley https://onlinelibrary.wiley.com/doi/10.3322/caac.21452
free resource scite Smart Citations https://scite.ai/reports/29603147