4、thods Theinvestigationofcardio-andcerebrovasculardiseaseriskfactorswereperformedin1833farmerswithage35-74yearsin1991-1992.Afterthree-yearintervention,2710peoplewereresearchedagain.TheWHO-recommendedrest-ECGMinnesotacodingrateswerecomparedbeforeandafterthree-yearinterventioninthisstudy.Results In