1839

Josef Skoda (Vienna) published authoritative book on percussion/auscultation that subjected Laennec’s teaching to criticism:  “Using experiments, he traced many of the sounds heard in auscultation and percussion in their physical origins, and demonstrated that each sound was characteristic of a specific physical alteration that could have been produced by any one of several causes, but was not necessarily distinctive of a specific disorder.  Accordingly, he disagreed with many of the specific signs of disease and the causal explanations Laennec had advanced for them.” His research was ignored in Britain and US until 1850s (Reiser, 39).