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. 2021 Jun 29;22(13):6991. doi: 10.3390/ijms22136991

Figure 1.

Figure 1

(a) Histogram showing the distribution and frequency (%) (Y-axis) of the number of C9orf72 hexanucleotide repeats (X-axis) in ALS (black bars) and COVID-19 (white bars) patients’ alleles. (b) Frequency (%) and number (n) of intermediate alleles for each repeat length >8 repeat units in ALS and COVID-19 patients. Both for ALS and COVID-19 patients, the % and n for repeat length > 8 units are in red; for COVID-19 patients, % and n with a clear difference in comparison with ALS patients are also highlighted in red.