TY  - GEN
AU  - Ploss,W R
AU  - Ploss,R E
TI  - A practical stethoscope approximator
SN  - 0003-3022
PY  - 1969///0523
KW  - Auscultation
KW  - instrumentation
KW  - Humans
N1  - Publication Type: Journal Article
UR  - https://doi.org/10.1097/00000542-196903000-00024
ER  -