L Rodriguez, JM Ribera, M Batlle, B Xicoy, JL Mate, F Milla, and E Feliu. 2002. “Progressive Multifocal Leukoencephalopathy Shortly After the Diagnosis of Follicular Lymphoma in a Patient Treated With Fludarabine”. Haematologica 87 (7). Pavia, Italy, ECR26-ECR26. https://doi.org/10.3324/%x.