1 Department of Psychiatry, Christian Medical College, Vellore, India.
2 Department of Psychiatry, National Institute of Mental Health and Neurosciences, Bangalore 560029, India. Electronic address: sharadphilipdr@gmail.com.
3 Department of Psychiatry, Father Muller Medical College, Mangalore, India.
4 Department of Psychiatry, All India Institute of Medical Sciences, Kalyani, India.