Small, medium, large, whatever the size of animals, significant demand exists for doctors of veterinary medicine or DVMs. Dr. James Lowe, an educator, adviser, researcher, farmer and associate professor at the University of Illinois (U of I), Sydney Leib, a second-year student in the U of I College of Veterinary Medicine, and Dr. Chelsea Ballinger, a vet-med school graduate who has established a mobile veterinary practice all share what it takes, costs, and more.