TY  - RPRT
TI  - Echocardiography practice issues: reimbursement, quality control, training, and credentialing.
AU  - J M Gardin
PY  - 1995
DO  - 10.1111/j.1540-8175.1995.tb00534.x
UR  - https://pubmed.ncbi.nlm.nih.gov/10150425/
ID  - 10150425
ER  -