A 30 year old male presented with pain in lower extremities, aggravated by walking. He gives the history of cigarette smoking. In this patient prevalence of which histocompatibility antigen is increased?

Surgery

A 30 year old male presented with pain in lower extremities, aggravated by walking. He gives the history of cigarette smoking. In this patient prevalence of which histocompatibility antigen is increased?

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?