Department of Endocrinology, Center for Endocrinology, Diabetes, Arthritis & Rheumatism (CEDAR) Super-speciality Clinics, Dwarka, New Delhi, India. Electronic address: deepdutta2000@yahoo.com. Department of Endocrinology, Max Superspeciality Hospitals, Patparganj, New Delhi, India. Department of Endocrinology, Manipal Hospitals, Dwarka, New Delhi, India. Department of Endocrinology, Apex Superspeciality, Rohtak, India. Department of Endocrinology, Kalpavriksha Healthcare, Dwarka, New Delhi, India. Department of Endocrinology, Maharaj Agrasen Hospital, New Delhi, India. Department of Rheumatology, CEDAR Superspeciality Clinics, Dwarka, New Delhi, India.