DMD and Becker muscular dystrophy: Becker Muscular Dystrophy (BMD) is a less severe form of the disease caused by the mutation in the DMD gene and slow progressive with an incidence rate of 1 in 20,000 male children (Aartsma-Rus et al., 2016; Wu et al., 2017; Mohammed et al., 2018; Kong et al., 2019; Wang et al., 2019).