TY  - RPRT
TI  - Changing echocardiography request patterns between 1988 and 1993.
AU  - N D Gillespie
AU  - A D Struthers
AU  - S D Pringle
PY  - 1996
UR  - https://pubmed.ncbi.nlm.nih.gov/8936807/
ID  - 8936807
ER  -