1 Drug De-addiction and Treatment Centre, Department of Psychiatry Postgraduate Institute of Medical Education and Research, Chandigarh, India. Electronic address: ghoshabhishek12@gmail.com.
2 Drug De-addiction and Treatment Centre, Department of Psychiatry Postgraduate Institute of Medical Education and Research, Chandigarh, India.
3 Department of Psychiatry, Columbia University Medical Center, New York, United States. Electronic address: Adam.Bisaga@nyspi.columbia.edu.