Dr Reza Shaker is Professor of Medicine, Radiology, and Otolaryngology ... He was the first to describe that the deglutitive upper esophageal sphincter opening can be increased by strengthening ...

Dodds, Walter J. Hogan and then Reza Shaker where he began his investigations of the neural mechanisms of swallowing, esophagus, and the upper esophageal sphincter. Ivan obtained his DVM degree ...