TY - JOUR AU - Watanabe, S M; Nekolaichuk, C; Beaumont, C TI - A Multicenter Study Comparing Two Numerical Versions of the Edmonton Symptom Assessment System in Palliative Care Patients JO - J Pain Symptom Manage VL - 41 PY - 2011 DO - 10.1016/j.jpainsymman.2010.04.020 L3 - PubMed-ID: 20832987 SP - 456 EP - 468 ER -