COMPARATIVE STUDY OF TESTS FOR BRUCELLA, S. TYPHI AND PROTEUS X19 IN &quot;SURFACE FIXATION&quot;, &quot;PLATE AGGLUTINATION&quot; AND &quot;TEST-TUBE AGGLUTINATION&quot;
ESTUDIO COMPARATIVO DE REACCIONES PARA BRUCELLA, S. TYPHI Y PROTEO X19 EN &quot;FIJACI'ON EN SUPERFICIE&quot;, &quot;AGLUTINACI'ON EN L'AMINA&quot; Y &quot;AGLUTINACI'ON EN TUBO&quot;