This page collects vetted references on medical safety, regulatory guidance, and clinical background for anyone researching this topic.
Does Tysabri cause Progressive Multifocal Leukoencephalopathy?: A Detailed Overview — detailed background and analysis.
Reference: PubMed Central (PMC)
Authoritative source for clinical, regulatory, and public-health background reading.
Reference: World Health Organization (WHO)
Authoritative source for clinical, regulatory, and public-health background reading.
Reference: Wikipedia: Medical Malpractice
Authoritative source for clinical, regulatory, and public-health background reading.