Progressive Multifocal Leukoencephalopathy in a Child with Hyperimmunoglobulin E Recurrent Infection Syndrome and Review of the Literature - Angelini, L; Pietrogrande, M C; Delle Piane, M R; Zibordi, F; Cinque, P; Maccagnano, C; Vago, L (Neuropediatrics, 2001)