[1] Chang Gung Univ Sci & Technol, Dept Nursing, Coll Nursing, Taoyuan, Taiwan
[2] Linkou Chang Gung Mem Hosp, Dept Radiat Oncol, Chang Gung Med Fdn, Proton & Radiat Therapy Ctr, Taoyuan, Taiwan
[3] Linkou Chang Gung Mem Hosp, Chang Gung Med Fdn, Head & Neck Oncol Grp, Taoyuan, Taiwan
[4] Chang Gung Univ, Dept Med, Coll Med, Taoyuan, Taiwan
[5] Natl Taiwan Univ, Sch Nursing, Coll Med, 1 Jen Ai Rd,Sect 1, Taipei 100, Taiwan
[6] Natl Taiwan Univ Hosp, Dept Nursing, Taipei, Taiwan