[1] Tokyo Med & Dent Univ, Grad Sch, Dept Comprehens Diag & Therapeut, Sect Div Liaison Psychiat & Palliat Med, Tokyo, Japan
[2] Tokyo Med & Dent Univ, Dept Otorhinolaryngol, Tokyo, Japan
[3] Tokyo Med & Dent Univ, Grad Sch, Sect Head & Neck Surg, Dept Head & Neck Reconstruct, Tokyo, Japan