[20 years of Folia Phoniatrica].
D049673:History, 20th Century; D006801:Humans; D010506:Periodicals as Topic / Q000266:history*; D013060:Speech; D013064:Speech Disorders / Q000266:history; D013070:Speech Therapy / Q000266:history; D013557:Switzerland
20 Jahre Folia Phoniatrica.