005040000a22001570004500003000900000005001700009700001600026700002400042245015700066264004900223300000800272041000800280650001100288650002600299650002100325PH-MaWHO20241108112106.01 aOmran, A.R.1 aStandley, C.C.eed.0 aFamily formation patterns and health : further studies : an international collaborative study in Colombia, Egypt, Pakistan and the Syrian Arab Republic.  aGeneva : bWorld Health Organization,c1981.  a1v.  aeng  aFamily  aChild health services  aMaternal welfare