00522nam a2200205   4500000000100000008004100001260001600042653002500058653001200083653001700095653002000112100001300132700001700145700001800162245002300180250001200203856007200215300001100287020001800298       2006                            d  bWHOaGeneva10aPrevention & control10aMethods10aEpidemiology10aDisease control1 aBonita R1 aBeaglehole R1 aKjellstroem T00aBasic epidemiology  a2nd ed.  uhttp://apps.who.int/iris/bitstream/10665/43541/1/9241547073_eng.pdf  a213 p.  a92-4-154707-3