Role of regulatory T cells in long-term immune dysfunction associated with severe sepsis - Nascimento, Daniele C.; Alves-Filho, José Carlos; Sônego, Fabiane; Fukada, Sandra Yasuyo; Pereira, Marcelo S.; Benjamim, Cláudia; Zamboni, Dario Simões; Silva, João Santana da; Cunha, Fernando de Queiroz (Critical Care Medicine, 2010)