Chapadeiro, E The complement fixation test of Guerreiro and Machado in the pericardial fluid in chronic Chagas's heart disease. [electronic resource] - The Journal of tropical medicine and hygiene Mar 1968 - 81-2 p. digital Publication Type: Journal Article ISSN: 0022-5304 Subjects--Topical Terms: Chagas Disease--diagnosisComplement Fixation TestsHumansPericardium