preferred_name: Progressive widening of synaptic clefts that are filled with amorphous debris seen on muscle biopsy
preferred_name_lc: progressive widening of synaptic clefts that are filled with amorphous debris seen on muscle biopsy
label: Progressive widening of synaptic clefts that are filled with amorphous debris seen on muscle biopsy
label_lc: progressive widening of synaptic clefts that are filled with amorphous debris seen on muscle biopsy