ss Astrid Institute of Tropical Medicine 
(Medical research) Anri! IJ 4 , 1 95>5> 
ece. Schmitt, Sexton 
director of Institute 
INSIIIUT DE MEDECIN& TROPICALE 
PRINCESSE ASTRID 
INSTlIUT DE MEBECINE TROPICAIE 
PRINCESSE ASTRID 
