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Note: Similar letters should be written to 
Dr. J.^Jadin 
M^decine-Directeur 
du Laboratoire Medical 
Bukavu , Congo-Beige 
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Dr. Maurice Lecomte 
Director, INEAC 
Yangarabi, Belgian > Congo 
Dr. Louis van den Berg 
Director, IRSAC 
Uvira, Belgian Congo 
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