@article{article, title = {{Development and Validation of the Idiopathic Multicentric Castleman Disease Symptom Burden Scale (ISBUS): Protocol for an International Multistage Mixed Methods Study}}, publisher = {{JMIR Publications Inc.}}, url = {{https://doi.org/10.2196/96022 }}, year = {{2026}}, month = {{8}}, author = {{Powell PA and Keetharuth A and Frances SM and Carlton J and Makarounas-Kirchmann K and Guerra Soares Brandão AA and Ramasamy K and Shupo F and Dacus KC and Casper C and Fajgenbaum DC et al}}, doi = {{10.2196/96022}}, volume = {{15}}, journal = {{JMIR Research Protocols}}, pages = {{e96022-e96022}}, note = {{Accessed on 2026/08/18}}}