THE STRUCTURE OF THE WATER INSOLUBLE PIGMENT OF THE BARK OF SANGRE DE DRAGO
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Instituto Nacional Nutrición, CD MEXICO, DF, MEX
Rockefeller Foundation, CD MEXICO, DF, MEX
Massachusetts InstitutoTech, Cambridge, MA, EUA
Instituto Nacional de Nutrición, CD MEXICO, DF, MEX
Massachusetts Instituto Tech, Cambridge, MA, EUA
INSTITUTO
Rockefeller Foundation, CD MEXICO, DF, MEX
Massachusetts InstitutoTech, Cambridge, MA, EUA
Instituto Nacional de Nutrición, CD MEXICO, DF, MEX
Massachusetts Instituto Tech, Cambridge, MA, EUA
INSTITUTO
Abstract
A total of 705, obtained from non-febrile persons in Guadalajara, were tested for typhus fever Of the 704, 114 (162%) gave positive reactions Of the 114 positives, 78 reacted at dilutions of 1-50 or higher; 15 reacted at dilutions of 1-60 or higher