DMD and myeloid sarcoma: At the individual ASV‐level, these included a lower relative abundance of several SCFA‐producing taxa for the MS cases versus controls, such as Ruminococcaceae‐NK4A214 group which was 61%–79% lower for the cases (aRR:0.39–0.21) and 72%–90% lower for the DMD‐naïve cases (aRR:0.28–0.10) across both cohorts, all p < 0.02.