[1] St Jude Childrens Res Hosp, Dept Oncol, Div Qual Life & Palliat Care, 262 Danny Thomas Pl,Mail Stop 260, Memphis, TN 38105 USA
[2] Kakatiya Med Coll, Warangal, Telangana, India
[3] George Washington Univ, Sch Med, Washington, DC USA
[4] Univ Tennessee, Hlth Sci Ctr, Memphis, TN USA
[5] Rochester Gen Hosp, Rochester, NY USA
[6] Emory Univ, Atlanta, GA USA
[7] Univ Nebraska Med Ctr, Omaha, NE USA