1 Assistant Professor, Department of Cardiology, Dr. Ram Manohar Lohia Institute of Medical Sciences, Lucknow, U.P., 226010, India. Electronic address: skvijay1980@rediffmail.com.
2 Department of Cardiology, Dr. Ram Manohar Lohia Institute of Medical Sciences, Lucknow, U.P., 226010, India.
3 Department of Cardiovascular Surgery, Dr. Ram Manohar Lohia Institute of Medical Sciences, Lucknow, U.P., 226010, India.