TY  - RPRT
TI  - Clinical problems in masking.
AU  - L W WELSH
AU  - J J WELSH
PY  - 1961
DO  - 10.1001/archotol.1961.00740020350016
UR  - https://pubmed.ncbi.nlm.nih.gov/13784290/
ID  - 13784290
ER  -