[1] Assoc Socially Applicable Res ASAR, Pune, India
[2] Maulana Azad Med Coll, Dept Community Med, New Delhi, India
[3] Trivandrum Inst Palliat Sci, Trivandrum, India
[4] Inst Nacl Ciencias Med & Nutr Salvador Zubiran, Dept Geriatria, Mexico City, Mexico
[5] Univ Witwatersrand, Fac Hlth Sci, Ctr Palliat Care, Johannesburg, South Africa
[6] Univ Witwatersrand, Fac Hlth Sci, Strengthening Oncol Serv Res Unit, Johannesburg, South Africa
[7] MOSC Med Coll, Kolenchery, India