An organized set of primary and secondary sources covering clinical background, drug-safety signals, and patient-safety considerations.
Long term outcome of Progressive Multifocal Leukoencephalopathy after Tysabri exposure
A focused look at the background, context, and key sources on this subject.
Reference: MedlinePlus — Trusted Health Information
Authoritative source for clinical, regulatory, and public-health background reading.
Reference: Mayo Clinic — Diseases & Conditions
Authoritative source for clinical, regulatory, and public-health background reading.
Reference: National Institutes of Health (NIH)
Authoritative source for clinical, regulatory, and public-health background reading.