Dot-enzyme-linked immunosorbent assay ( dot-elisa ) for detection of pneumococcal polysaccharide antigens in pleural fluid effusion samples: comparison with bacterial culture , counterimmunoelectrophoresis and latex agglutination - Requejo, H I Z; Alkmin, M G A; Almeida, R G; Casagrande, S T; Cocozza, A M; Lotufo, João Paulo Becker; Waetge, A R P; Rodrigues, J. C. (Revista do Instituto de Medicina Tropical de Sao Paulo, 1994)