@misc{indiciae3bb3773b8b13, title = {A simple phantom for learning needle placement for sonographically guided biopsy.}, author = {B Silver and T S Metzger and T A Matalon}, year = {1990}, doi = {10.2214/ajr.154.4.2107686}, url = {https://pubmed.ncbi.nlm.nih.gov/2107686/}, note = {Source identifier: 2107686} }