European Organization for the Research and Treatment of Cancer Quality of Life Questionnaire - Cholangiocarcinoma and Gallbladder Cancer 21 Items

**Semantic type:** Intellectual Product

**Definition:** A standardized 21-item questionnaire module developed by the European Organisation for Research and Treatment of Cancer (EORTC) in 2011 that is designed to supplement the EORTC QLQ-C30 core questionnaire in assessing the quality of life in patients with cholangiocarcinoma and cancer of the gallbladder.

**Synonyms:** - EOR24 - EORTC QLQ-BIL21 - EORTC QLQ-BIL21