004990000a22001330004500003000900000005001700009110009000026245009500116562003100211264004900242300000900291041000800300650005700308PH-MaWHO20241108112307.0 aWorld Health Organization. Programme for the Control of Acute Respiratory Infections. aProgramme for Control of Acute Respiratory Infections : fifth programme report, 1990-1991. aWHO/ARI/92.22.-Unpublished aGeneva : bWorld Health Organization,c1992. a94p. aeng aRespiratory tract infectionsxPrevention and control