Brazilian workshop model to train investigators in chronic graft-versus-host disease clinical trials according to the 2005-2006 National Institutes of Health recommendations oleh Rita de Cássia Barbosa da Silva Tavares, Márcia de Matos Silva, Luis Fernando da Silva Bouzas, Maria Cláudia Rodrigues, Afonso Celso Vigorito, Vaneusa Funke, Marcos Mauad, Maria Elvira Pizzigatti Correa, Clarissa Vasconcellos de Souza, Elenaide Nunes, Alessandra Ferrari, Ariana Paixão, Talita Martins, Érika Pallottino, Mary Evelyn Dantas Flowers