title: Introductory paragraph.
mesh_terms: D001905:Botulinum Toxins / Q000008:administration & dosage / Q000627:therapeutic use*; D005121:Extremities / Q000503:physiopathology; D006801:Humans; D007273:Injections, Intramuscular; D009128:Muscle Spasticity / Q000628:therapy*; D009498:Neurotoxins / Q000008:administration & dosage / Q000627:therapeutic use; D011788:Quality of Life; D014732:Vibration / Q000627:therapeutic use*
chemical_list: D009498:Neurotoxins; D001905:Botulinum Toxins