▁B alk an ▁studies ▁currently ▁referred ▁to ▁as ▁I 2 a 1 b , ▁defined ▁by ▁SN P ▁M 4 2 3 ▁This ▁cla de ▁has ▁higher ▁frequencies ▁to ▁the ▁north ▁of ▁the ▁Alban oph one ▁area , ▁in ▁Dal mat ia ▁and ▁Bos nia . ▁The ▁expansion ▁of ▁I 2 a - D in ▁took ▁place ▁with ▁the ▁S lav ic ▁migration ▁in ▁the ▁Late ▁Anti qu ity ▁and ▁Early ▁Middle ▁A ges . ▁▁ ▁H ap lo group ▁R 1 a ▁is ▁common ▁in ▁Central ▁and ▁Eastern ▁Europe ▁( and ▁is ▁also ▁common ▁in ▁Central ▁Asia ▁and ▁the ▁Indian ▁sub cont inent ). ▁In ▁the ▁B alk ans , ▁it ▁is ▁strongly ▁associated ▁with ▁S lav ic ▁areas . ▁ ▁A ▁study ▁by ▁Batt aglia ▁et ▁al . ▁in ▁ 2 0 0 8 ▁found ▁the ▁following ▁ha p lo group ▁distributions ▁among ▁Alban ians ▁in ▁Alban ia ▁itself : ▁▁ ▁The ▁same ▁study ▁by ▁Batt aglia ▁et ▁al . ▁( 2 0 0 8 ) ▁also ▁found ▁the ▁following ▁distributions ▁among ▁Alban ians ▁in ▁Mac ed onia : ▁ ▁The ▁same ▁study ▁by ▁Batt aglia ▁et ▁al . ▁( 2 0 0 8 ) ▁also ▁found ▁the ▁following ▁distributions ▁among ▁Alban ians ▁in ▁Alban ia ▁itself ▁and ▁Alban ians ▁in ▁Mac ed onia : ▁ ▁A ▁study ▁by ▁Per ič ić ▁et ▁al . ▁in ▁ 2 0 0 5 ▁found ▁the ▁following ▁Y - D na ▁ha p lo group ▁frequencies ▁in ▁Alban ians ▁from ▁Kos ovo ▁with ▁E