Supplemental material, sj-jpg-1-sco-10.1177_2050313X231221436 for Brothers with Becker muscular dystrophy show discordance in skeletal muscle computed tomography findings: A case report by Yoshinori Nambu, Taku Shirakawa, Kayo Osawa, Hisahide Nishio, Kandai Nozu, Masafumi Matsuo and Hiroyuki Awano in SAGE Open Medical Case Reports