Breath sound audible for more than——- seconds on auscultation over the trachea during forced expiration denotes significant airway obstruction:

Surgery

Breath sound audible for more than——- seconds on auscultation over the trachea during forced expiration denotes significant airway obstruction:

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?