TY  - RPRT
TI  - Methodological variables affecting phonational frequency range in adults.
AU  - A R Reich
AU  - R R Frederickson
AU  - J A Mason
AU  - R S Schlauch
PY  - 1990
DO  - 10.1044/jshd.5501.124
UR  - https://pubmed.ncbi.nlm.nih.gov/2299828/
ID  - 2299828
ER  -