TY  - RPRT
TI  - Basic transthoracic echocardiography.
AU  - Graham S Hillis
AU  - Peter Bloomfield
PY  - 2005
DO  - 10.1136/bmj.330.7505.1432
UR  - https://pubmed.ncbi.nlm.nih.gov/15961816/
ID  - 15961816
ER  -