TY - GEN T1 - Development and Validation of the Idiopathic Multicentric Castleman Disease Symptom Burden Scale (ISBUS): Protocol for an International Multistage Mixed Methods Study (Preprint) T2 - JMIR Publications Inc. UR - https://doi.org/10.2196/preprints.96022 PY - 2026/03/24 AU - Powell PA AU - Keetharuth A AU - Frances SM AU - Carlton J AU - Makarounas-Kirchmann K AU - Guerra Soares Brandão AA AU - Ramasamy K AU - Shupo F AU - Dacus KC AU - Casper C AU - Fajgenbaum DC et al ED - DO - DOI: 10.2196/preprints.96022 Y2 - 2026/08/18 ER -