@misc{indiciae0cd2ec51d77d, title = {The cardiac echogenic focus.}, author = {J Simpson}, year = {1999}, doi = {10.1002/(sici)1097-0223(199910)19:10<972::aid-pd650>3.0.co;2-w}, url = {https://pubmed.ncbi.nlm.nih.gov/10521825/}, note = {Source identifier: 10521825} }