[MISTAKES AND HAZARDS IN THE MAKING OF EAR ADJUSTING PIECES].
D000223:Adaptation, Psychological; D004424:Ear Canal; D005547:Foreign Bodies; D006310:Hearing Aids; D006801:Humans
EAR CANAL; FOREIGN BODIES; HEARING AIDS
FEHLER UND GEFAHREN BIE DER ANFERTIGUNG VON OHR-PABSTUECKEN