TY  - RPRT
TI  - Audiometric zero for air conduction using manual audiometry.
AU  - R W Fearn
AU  - D R Hanson
PY  - 1983
DO  - 10.3109/03005368309078913
UR  - https://pubmed.ncbi.nlm.nih.gov/6626786/
ID  - 6626786
ER  -