%0 Journal Article %T T Lymphocytes from Chagasic Patients Are Activated but Lack Proliferative Capacity and Down-Regulate CD28 and CD3ΞΆ %J PLoS Neglected Tropical Diseases %V 7 %N 1 %P e2038 %D 2013-01-31 %I Public Library of Science %~ DeepDyve