1. Department of Palliative Care and Psycho-oncology, Tata Medical Center, Kolkata, India,
2. Department of Palliative Care and Psycho-oncology, Kasturba Medical College Manipal, Manipal Academy of Higher Education, Manipal, Karnataka, India,
3. Department of Palliative Medicine and Supportive Care, Kasturba Medical College Manipal, Manipal Academy of Higher Education, Manipal, Karnataka, India,