007730000a22001810004500003000900000005001700009110005800026245013100084264005700215490008000272300000900352041000800361650002000369651001100389700003100400700004500431246011500476PH-MaWHO20241108112413.0  aJoint OIHP/WHO Study-Group on Bilharziasis in Africa.  aGroupe mixte OIHP/OMS d' Ttudes sur la bilharziose en Afrique : rapport sur la premiFre session, Le Caire, 24-29 octobre 1949.  aGenFve : bOrganisation mondiale de la SantT,c1950.  a(Organisation mondiale de la SantT. STrie de rapports techniques ; no. 17).  a16p.  afre  aSchistosomiasis  aAfrica  aWorld Health Organization.  aOffice international d'hygiFne publique. 1aJoint OIHP/WHO Study-Group on Bilharziasis in Africa : report on the first session, Cairo, 24-29 October 1949.