For a survey a village is divided into 5 lanes then each lane is sampled randomly is an example is:

Surgery

For a survey a village is divided into 5 lanes then each lane is sampled randomly is an example is:

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?