Feline Hyperthyroidism - Also called thyrotoxicosis hyperthyroidism is one of the most common diseases of the middle-aged and older cat. The Winn Feline Foundation describes clinical signs methods of diagnosis and treatment options.

Hypurrcat - A treatment center built exclusively for radioiodine treatment of cats with hyperthyroidism.

Radiocat - Centers for the treatment of feline hyperthyroidism. Discusses services and philosophy the different ways of treatment hospital locations and phone numbers.

Thyro-Cat - A Long Island New York based center dedicated to the treatment of cats with feline hyperthyroidism using I-131.

Veterinary Nuclear Imaging - A southern California based veterinary facility providing diagnostic nuclear medicine and magnetic resonance imaging for animals as well as radioiodine therapy for feline hyperthyroidism.