preferred_name: Groups of atrophic fibers seen on muscle biopsy (type I fiber predominance)
preferred_name_lc: groups of atrophic fibers seen on muscle biopsy (type i fiber predominance)
label: Groups of atrophic fibers seen on muscle biopsy (type I fiber predominance)
label_lc: groups of atrophic fibers seen on muscle biopsy (type i fiber predominance)