Hawkins, D B Examination of two issues concerning functional gain measurements. [electronic resource] - The Journal of speech and hearing disorders Feb 1987 - 56-63 p. digital Publication Type: Journal Article; Research Support, U.S. Gov't, Non-P.H.S. ISSN: 0022-4677 Standard No.: 10.1044/jshd.5201.56 doi Subjects--Topical Terms: AdultAgedAudiometry--methodsAuditory ThresholdEvaluation Studies as TopicHearing Aids--standardsHearing Loss, Sensorineural--rehabilitationHumansMiddle Aged