Maximum phonation time for children with normal voices

Bless, 1982, Verbal instructions: A critical variable in obtaining optimal performance for maximum phonation time Bless, 1982, Estimation of glottal air flow and maximum phonation time as a clinical tool Coombs, 1976 Harris, 1971 Launer, 1971 Lewis, 1977 Looney, 1980, Duration of sustained phonation in kindergarten children McQueen, 1970, Maximum phonation time, air flow rate, and air volume during phonation: Normative information on third grade children Platt, 1975, Maximum phonation time and air flow rate of children with and without vocal nodules, J. Kansas Speech Hear. Assoc., 15, 45 Tait, 1977, Maximum duration of sustained /s/ and /z/ in children