4Davies A H, Larsson G, Ardill J, et al. Development of a disease-specific quality of life questionnaire module for patients with gastrointestinal neuroendocrine tumors [J]. Eur J Cancer, 2006,42 (4): 477-484.
5Fitzsimmons D, Johnson C D, Georque S,et al. Development of a disease-specific quality of life(QOL) questionnaire module to supplement the EORTC core cancer QOL questionnaire, the QLQ-C30 in patients with pancreatic cancer [J]. Eur J Cancer,1999,6(35) :939-941.