preferred_name: Ragged red fibers, mainly in type I fibers seen on skeletal muscle biopsy
preferred_name_lc: ragged red fibers, mainly in type i fibers seen on skeletal muscle biopsy
label: Ragged red fibers, mainly in type I fibers seen on skeletal muscle biopsy
label_lc: ragged red fibers, mainly in type i fibers seen on skeletal muscle biopsy