%0 Journal Article %T Public health focus: effectiveness of disease and injury prevention. 1992 %J MMWR: Morbidity and mortality weekly report %D 1997 %A Centers for Disease Control and Prevention, USA, %V 46 %N 4 %P 73-76 %X Abstract unavailable. %G en %I U.S. Centers for Disease Control and Prevention %@ 0149-2195 %U http://dx.doi.org/