作者单位:GTB Hospital, Dilshad Garden, New Delhi, India, Environmental Biochemistry and Molecular Biology[1]Department of Anesthesiology and Critical Care, University College of Medical Sciences, University[2]GTB Hospital, Dilshad Garden, New Delhi, India, Department of Dermatology and Venerology[3]GTB Hospital, Dilshad Garden, New Delhi, India, Department of Pharmacology, University College of[4]