Safety and responsiveness of varicella vaccine in patients with juvenile rheumatic diseases - Pileggi, Gecilmara Cristina Salviato; Souza, Cleonice Barbosa S. de; Ono, Erica; Morais-Pinto, Maria Isabel de; Ferriani, Virgínia Paes Leme (Keystone Pediatric Rheumatology Symposium, 2008)