Letter: Symptomatic care of patients with amyotrophic lateral sclerosis..
D000690:Amyotrophic Lateral Sclerosis / Q000188:drug therapy*; D000768:Anesthesia, General / Q000009:adverse effects; D006801:Humans; D014282:Trihexyphenidyl / Q000627:therapeutic use*
D014282:Trihexyphenidyl