SMN1 and facioscapulohumeral muscular dystrophy: The mean age±standard deviation at diagnosis was 61.8±11.6 years for ALS (Fig. 6B), 5.0±3.1 years for DMD (Fig. 6C), 3.8±8.0 years for SMA (Fig. 6D), 10.3±10.2 years for BMD (Fig. 6E), 30.9±21.0 years for LGMD (Fig. 6F), 35.6±21.6 years for FSHD (Fig. 6G), and 36.7±25.4 years for Pompe (Fig. 6H).