PNN Jaipur (Rajasthan) [India], April 21: In a major leap for respiratory medicine, senior specialist Dr. Sheetu Singh has developed a pioneering diagnostic tool to identify Hypersensitivity Pneumonitis (HP)--a severe lung condition that often leads to fatal fibrosis. The research, which boasts an impressive accuracy rate of over 90%, has gained international acclaim and has been published in Thorax, one of