preferred_name: maple syrup urine disease type 1B
preferred_name_lc: maple syrup urine disease type 1b
label: MSUD due to deficiency of E1-beta subunit of branched-chain alpha-keto acid dehydrogenase complex
label_lc: msud due to deficiency of e1-beta subunit of branched-chain alpha-keto acid dehydrogenase complex