TY  - RPRT
TI  - Four-trace echoencephalography.
AU  - A C Hudson
AU  - B J Trollope
PY  - 1971
DO  - 10.1016/0041-624x(71)90120-x
UR  - https://pubmed.ncbi.nlm.nih.gov/5555102/
ID  - 5555102
ER  -