Molecular sequences and allele frequencies of the microsatellite configurations of β -LCR-HS2 region, IVSII of fetal gene ( and ), and 5′ of β -globin gene region. The configurations of β -LCR-HS2 were named from L1 to L13, those of IVSII- were named from G1 to G7, those of IVSII- were named between A1 and A7, and those 5′ of β -globin gene were named from B1 to B8. L1, G1, A1, and B1 are the reference sequence configurations from the HUMHBB. The nucleotides are numbered according to the HUMHBB 73308 bp GenBank, Version: U01317.1 GI:455025.