An organized set of primary and secondary sources covering clinical background, drug-safety signals, and patient-safety considerations.
Scientific evidence connecting Tysabri to Progressive Multifocal Leukoencephalopathy
In-depth context and analysis on this topic for researchers and advocates.
Reference: PubMed Central (PMC)
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.