Failure of cytarabine and increased JC virus-DNA burden in the cerebrospinal fluid of patients with AIDS-related progressive multifocal leucoencephalopathy. - Antinori A; De Luca A; Ammassari A; Cingolani A; Murri R; Colosimo G; Roselli R; Scerrati M; Tamburrini E (AIDS (London, England), 1994)