TY  - RPRT
TI  - It is time for the sonoscope.
AU  - Lennard D Greenbaum
PY  - 2003
DO  - 10.7863/jum.2003.22.4.321
UR  - https://pubmed.ncbi.nlm.nih.gov/12693614/
ID  - 12693614
ER  -