A lady presented with nonprogressive dysphagia only for solids. Barium study showed proximal esophageal dilatation with distal constriction. The most likely diagnosis is

Medicine

A lady presented with nonprogressive dysphagia only for solids. Barium study showed proximal esophageal dilatation with distal constriction. The most likely diagnosis is

True about Postural Hypotension:

A 25 years old unidentified male from roadside was brought by police…

First time causative agent of AIDS was discovered in: