TY  - RPRT
TI  - Appraising surgeons learning sonography: measuring measurement variability.
AU  - Paul V Gallagher
AU  - Simon T Elliott
AU  - Richard Charnley
PY  - 2003
DO  - 10.1002/jcu.10185
UR  - https://pubmed.ncbi.nlm.nih.gov/12923881/
ID  - 12923881
ER  -