preferred_name: Myoclonic spasms, superimposed episodic, severe, painful (characterized by activation of antagonistic muscle pairs, may involve facial muscles)
preferred_name_lc: myoclonic spasms, superimposed episodic, severe, painful (characterized by activation of antagonistic muscle pairs, may involve facial muscles)
label: Myoclonic spasms, superimposed episodic, severe, painful (characterized by activation of antagonistic muscle pairs, may involve facial muscles)
label_lc: myoclonic spasms, superimposed episodic, severe, painful (characterized by activation of antagonistic muscle pairs, may involve facial muscles)