Quantitative gated SPECT of myocardium in detection of ischemic heart disease: validation of findings by means of coronarography.

Discussion Sibilants are produced in the sibilant slot between the tongue apex and the palatal surface of upper incisors. Sigmatism was observed, as one might expect, with different orthodontic anomalies, when there were severe protrusions or tremata present. In these cases the function of the tongue is impaired and consequently sigmatism occurs. The results of the presented study might be negatively influenced by difficult communication with children during recording in medical environment.