TY  - RPRT
TI  - Elastic foamed polymer earplug as a stethoscope earpiece.
AU  - M Yamashita
PY  - 1987
DO  - 10.1097/00000542-198703000-00051
UR  - https://pubmed.ncbi.nlm.nih.gov/3826721/
ID  - 3826721
ER  -