Name Info Provider Link
subscription/membership/fee required American Psychological Association http://content.apa.org/journals/hea/37/9/866
COPD free resource MedlinePlus Health Information https://medlineplus.gov/copd.html
subscription/membership/fee required Ovid Technologies, Inc. http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=30138022.ui
free resource scite Smart Citations https://scite.ai/reports/30138022