This page collects vetted references on medical safety, regulatory guidance, and clinical background for anyone researching this topic.
Tysabri linked to Progressive Multifocal Leukoencephalopathy Resource Guide
Detailed background, context, and analysis on this topic, compiled for open research purposes.
Reference: World Health Organization (WHO)
Authoritative source for clinical, regulatory, and public-health background reading.
Reference: Centers for Disease Control and Prevention (CDC)
Authoritative source for clinical, regulatory, and public-health background reading.
Reference: ClinicalTrials.gov
Authoritative source for clinical, regulatory, and public-health background reading.