Esophageal achalasia in a dog successfully treated with a modified heller's esophagomyotomy: Boria PA, Webster CL, Berg J Can Vet J 44 (3): 232 - 4, 2002. (elkgrovevse.com)
Dorian Brantley was diagnosed with achalasia — a rare digestive disorder that affects the muscles between the esophagus and the stomach. (uchospitals.edu)
Pasricha says his colleagues laughed when he first suggested injecting achalasia patients with botulin. (newscientist.com)