1. National Comprehensive Cancer Network. NCCN Clinical Practice Guidelines in Oncology: distress management, 2015. http://www.nccn.org/professionals/physician_gls/pdf/distress.pdf
2. The association between malnutrition and psychological distress in patients with advanced head-and-neck cancer;Ma;Curr Oncol,2013
3. Management of distress in cancer patients;Holland;J Support Oncol,2010
4. Emotional distress: the sixth vital sign-future directions in cancer care;Bultz;Psychooncology,2006