f 
Notes Similar letters should be Kritten to 
Dr. J. Jadin 
Mldecine-Directeur 
du Laboratoire Medical 
Bukavu , Congo- Beige 
Dr. Maurice Lecoiate 
Director, INISAC 
langambi, Belgian Congo 
Dr. Louis van den Berg 
Director, IHSAC 
Uvira, Belgian Congo 
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