Objective: To study the distributive characteristics of dystrophin gence deletion and the relationship between the number of deletion and clinical symptoms in Duchenne/Becker muscular dystrophin (DMD/BMD).

• 目的:研究Duchenne/Becker型肌营养不良症(DMD/BMD)患者致病基因外显子缺失的分布特点及其与临床表现的关系。