The positive rate of Gal-9 in total cells was about 14% in the patient with no ILD (Figures 4A,B), 27% in the patient with non-RP-ILD (Figures 4G,H) and 38% in the patient with RP-ILD (Figures 4M,N), indicating that Gal-9 expression was more substantial in patients with non-RP-ILD and RP-ILD than those with no ILD. The gene discussed is LGALS9; the disease is retinitis pigmentosa 1.