SMN1 and proximal spinal muscular atrophy: Specific gene testing identified 7 of the 278 donors (2.5%) as carriers of at least one pathogenic or likely pathogenic variant in a gene, including 1.9% of 154 donors (3/154) as carrier variants in α-Like or β-Like globin genes, 17.6% of 17 donors (3/17) as carrier variants in GJB2, 12.5% of 8 donors (1/8) as carrier variants in SMN1. In addition, most of the requested genes were the α-like or β-like globin genes, followed by the genes related to G6PD deficiency, GJB2-related DFNB1 nonsyndromic hearing loss and deafness, and spinal muscular atrophy (SMN1).