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subscription/membership/fee required Ovid Technologies, Inc. http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=26910868.ui
free resource PubMed Central https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/26910868/
free resource Europe PubMed Central https://europepmc.org/abstract/MED/26910868
free resource scite Smart Citations https://scite.ai/reports/26910868
subscription/membership/fee required Wolters Kluwer https://doi.org/10.1097/PHH.0000000000000401