³í¹®) Community-level socioeconomic inequality in the incidence of ischemic heart disease: a nationwide cohort study °í·Á´ëÇб³ ¾È¾Ïº´¿ø À̽ÄÇ÷°ü¿Ü°ú ±ÇÁر³ ±³¼ö(»çÁø)ÆÀ(¼¿ï¾Æ»êº´¿ø Ç÷°ü¿Ü°ú ÇÑ¿µÁø ±³¼ö, °í·Á´ë ÀÇÇÐÅë°èÇб³½Ç ÃÖÁö¹Ì ¿¬±¸¿ø)