Name Info Provider Link
subscription/membership/fee required Ovid Technologies, Inc. http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=32722732.ui
subscription/membership/fee required Frontline Medical Communications Inc https://www.aacp.com/article/abstract/suspected-double-delusional-infestation-involving-pets-in-the-veterinary-setting/