TFRC and autosomal dominant cerebellar ataxia: Average percentages of CD71+CD45− were 4.6 ± 3.7% in normal AA donors, 7 ± 2.8% in AS trait carrier donors, 18.7 ± 14.6% in SCA patients at baseline, and 8.1 ± 5.6% in SCA patients at 60 days after transplant.