TY  - RPRT
TI  - Cross-sectional echocardiography.
AU  - M L Rigby
AU  - A N Redington
PY  - 1989
DO  - 10.1093/oxfordjournals.bmb.a072363
UR  - https://pubmed.ncbi.nlm.nih.gov/2695211/
ID  - 2695211
ER  -