Name Info Provider Link
subscription/membership/fee required American Psychological Association http://content.apa.org/journals/ort/55/4/542
subscription/membership/fee required Ovid Technologies, Inc. http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=3907371.ui
subscription/membership/fee required Wiley https://onlinelibrary.wiley.com/resolve/openurl?genre=article&sid=nlm:pubmed&issn=0002-9432&date=1985&volume=55&issue=4&spage=542