[Hard of hearing: with or without hearing aid].
D000368:Aged; D003142:Communication; D012048:Correction of Hearing Impairment; D006310:Hearing Aids; D006801:Humans; D009633:Nonverbal Communication; D011304:Presbycusis; D012682:Sensory Aids; D013060:Speech
Slecht horen: wel en geen toestel.