1. Surgical management of pharyngeal disorders in the dog and cat;Allen S.W.;Prob. Vet. Med.,1991
2. Esophageal achalasia and secondary megaesophagus in a dog;Boria P.A.;Can. Vet. J.,2003
3. Esophagomyotomy (Heller's) for relief of esophageal achalasia in three dogs;Clifford D.H.;J. Am. Vet. Med. Assoc.,1967
4. Management of esophageal achalasia in miniature schnauzers;Clifford D.H.;J. Am. Vet. Med. Assoc.,1972
5. Comparison of Motor Nuclei of the Vagus Nerve in Dogs With and Without Esophageal Achalasia