Gap-PCR confirmed that they included a 1357 bp ?-globin gene deletion (NG_000007.3:g.69997_71353del1357) in one case and a HBG2-HBG1 fusion gene consisting of exons 1 and 2 of HBG2 ((G) ?-globin gene) and exon 3 of HBG1 ((A)?-globin gene) (HBG2:c.315 + 573_HBG1: c.315 + 572del) in two cases. 