[Letter: The hyperkinetic heart syndrome].
D004185:Disability Evaluation; D005860:Germany, West; D006801:Humans; D009449:Neurocirculatory Asthenia / Q000175:diagnosis; D009790:Occupations; D011379:Prognosis; D013610:Tachycardia / Q000175:diagnosis*
Hyperkinetisches Herzsyndrom.