Name Info Provider Link
Emergency Medical Services free resource MedlinePlus Health Information https://medlineplus.gov/emergencymedicalservices.html
subscription/membership/fee required Ovid Technologies, Inc. http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=29688243.ui
free resource scite Smart Citations https://scite.ai/reports/29688243
subscription/membership/fee required Silverchair Information Systems https://academic.oup.com/ageing/article-lookup/doi/10.1093/ageing/afy056