00387nam a2200097Ia 4500008004100000082001400041100001800055245017300073264003200246300001100278200526s9999||||xx |||||||||||||| ||und||  a617.8 DAV  aDavis, Adrian 0aHearing in Adults: Prevalence and Distribution of Hearing Impairment and Reported Hearing Disability In the MRC Institute of Hearing Researchs National Study of Hearing  bWhurr Publishers Ltd.c1995  a1011p.