1. Development and Initial Validation of the Three-Levels-of-Needs Questionnaire for Self- Assessment of Palliative Needs in Patients with Cancer 
Anna Thit Johnsen, PhD, Morten A. Petersen, MSc, Lise Pedersen, MD, DMSc, Mogens Groenvold, MD, PhD, DMSc 
Journal of Pain and Symptom Management 
Volume 41, Issue 6, Pages (June 2011)
DOI: /j.jpainsymman
Copyright © 2011 U.S. Cancer Pain Relief Committee Terms and Conditions

2. Fig. 1 Relationship between EORTC QLQ-C30 and the 3LNQ.
Journal of Pain and Symptom Management  , DOI: ( /j.jpainsymman )
Copyright © 2011 U.S. Cancer Pain Relief Committee Terms and Conditions

3. Journal of Pain and Symptom Management 2011 41, 1025-1039DOI: (10
Journal of Pain and Symptom Management  , DOI: ( /j.jpainsymman )
Copyright © 2011 U.S. Cancer Pain Relief Committee Terms and Conditions