“POLYMORPHISM IN INTERLEUKIN-4 GENE AND THE RISK OF CHRONIC OBSTRUCTIVE PULMONARY DISEASE IN A NORTH INDIAN POPULATION : A CASE-CONTROL STUDY”, The Scientific Temper, vol. 2, no. 1 & 2, pp. 15–20, Jul. 2011, doi: 10.58414/SCIENTIFICTEMPER.2011.02.1.03.