alliedmonitor.com, Allied Monitor, Approved Johne's Testing Laboratory

cvm.missouri.edu, University of Missouri College of Veterinary Medicine’s site.

netvet.wustl.edu, Veterinary Medical resources available from a Veterinarian at Washington University Division of Comparative Medicine, located in St. Louis Missouri.

avma.org, Welcome to the AVMA Network!

acvpm.org, American College of Veterinary Preventive Medicine.