005930000a22001570004500003000900000005001700009245009700026020001800123264005800141490008300199300000900282041000800291650003200299651001100331246009300342PH-MaWHO20241108112419.0  aConfTrence africaine CCTA/OMS sur l' ankylostomiase, Brazzaville, 22-29 aovt 1961 : rapport.  a92-4-220255-X  aGenFve : bOrganisation mondiale de la SantT, c1963.  a(Organisation mondiale de la SantT. STrie de rapports techniques ; no. 255).    a32p.  afre  aAncylostomiasisxCongresses  aAfrica 1aCCTA/WHO African Conference on Ancylostomiasis, Brazzaville, 22-29 August 1961 : report.