LAMA2 and muscular dystrophy, limb-girdle, autosomal recessive 23: LAMA2-realted CMD ranges from severe, early onset merosin deficient congenital muscular dystrophies type 1A (MDC1A, OMIM 607855), to mild, limb-girdle muscular dystrophies (LGMDR23, OMIM 618138) (8, 9).