TY  - RPRT
TI  - Polyvinyl in tympanic membrane perforations.
AU  - F Johnson
PY  - 1967
DO  - 10.1001/archotol.1967.00760050154005
UR  - https://pubmed.ncbi.nlm.nih.gov/6029339/
ID  - 6029339
ER  -