Name Info Provider Link
subscription/membership/fee required Australasian Medical Publishing Company https://www.mja.com.au/public/issues/191_07_051009/letters_051009_fm-3.html
Pet Health free resource MedlinePlus Health Information https://medlineplus.gov/pethealth.html
subscription/membership/fee required Ovid Technologies, Inc. http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=19807638.ui
subscription/membership/fee required Wiley https://doi.org/10.5694/j.1326-5377.2009.tb02855.x