MAB21L3 and Bethlem myopathy: LGMD: limb-girdle muscular dystrophy, R1 (CAPN): LGMD R1 calpain3-related, R2 (DYSF): LGMD R2 dysferlin-related, R3–6 (SGC): collective name of LGMD R3–6 sarcoglycan-related, R7 (TCAP): LGMD R7 telethonin-related, R9 (FKRP): LGMD R9 FKRP-related, R12 (ANO5): LGMD R12 anoctamin5-related, R14 (POMT2): LGMD R14 POMT2-related, R19 (GMPPB): LGMD R19 GMPPB-related, D3 (HNRNPDL): LGMD D3 HNRNPDL-related, D5/R22 (Col6): combined name of LGMD D5 collagen 6-related and LGMD R22 collagen 6-related, or Bethlem myopathy.