SERPINF1 and osteogenesis imperfecta: Homozygous or compound heterozygous WNT1 variants were the most common genotypes in this Chinese AR OI cohort (n = 20, 6.71%), followed by SERPINF1 (n = 17, 5.71%) and FKBP10 (n = 10, 3.36%), consistent with our previous findings [28].