A variety of causative factors have been implicated in the development of Ca esophagus. Which of the following is NOT a predisposing factor for Ca esophagus?

Surgery

A variety of causative factors have been implicated in the development of Ca esophagus. Which of the following is NOT a predisposing factor for Ca esophagus?

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?