A patient comes with dysphagia and regurgitation. Manometry shows ineffective contractions in the Lower esophagus. Which of the following will not cause this condition

Surgery

A patient comes with dysphagia and regurgitation. Manometry shows ineffective contractions in the Lower esophagus. Which of the following will not cause this condition

A tender swelling in submandibular triangle is mostly likely diagnosed as

In transfacial proportions, the face Is divided into how many segments:

Specific for Ankylosing spondylitis is true?