A simple patch test (empty tablet cover patch test) demonstrating ornidazone as offending agent in a patient of fixed drug eruption: Report of a clinical case, a new modified technique and systematic review of literature. - Balamurugan, R.; Sarma, Phulen; Nagendran, Prabhakaran; Nicodemus, Deepthi Slesser; Sharma, Sushil (Indian Journal of Pharmacology, 2025)