The Cornell Feline Health Center is dedicated to improving the welfare of all cats by supporting research on diseases and conditions that affect cats and by providing information to owners, breeders, and veterinary professionals worldwide.
https://www2.vet.cornell.edu/departments-centers-and-institutes/cornell-feline-health-center

The Indoor Pet Initiative (IPI) provides a foundation for pet owners and veterinarians to create plans tailored to promote thriving that are based on the soundest, most up-to-date science available.
https://indoorpet.osu.edu/

Carolina Veterinary Specialists is an emergency veterinary hospital with locations in Charlotte, Greensboro, Huntersville, Matthews and Winston-Salem, NC.
https://www.carolinavet.com/

Charlotte Area Referral and Emergency
https://carecharlotte.com/