1. From the Department of Neurology (K.K., R.D., B.R., M.T.), All India Institute of Medical Sciences, New Delhi; MEG Resource Facility (K.K.), National Brain Research Institute, Manesar; Centre for Integrative Medicine and Research (G.S., N.P., M.S.J., S.M.), Department of Cardiology (G.S.), Department of Neuropsychology (A.N.), Department of Biostatistics (A.D.U.), Department of Physiology (K.K.D.), and Department of Psychiatry (R.S.), All India Institute of Medical Sciences, New Delhi, India.