@misc{indiciae9de479bfb182, title = {Improved techniques in ultrasonic cross sectional echography.}, author = {G Kossoff}, year = {1972}, doi = {10.1016/0041-624x(72)90296-x}, url = {https://pubmed.ncbi.nlm.nih.gov/4661298/}, note = {Source identifier: 4661298} }