@misc{indiciae01b10d707c17, title = {A microprocessor-controlled echocardiographic tracking system.}, author = {M S Hostetler and L E Roemer and G S Malindzak and E J Cauffield and M L Petrovick}, year = {1980}, url = {https://pubmed.ncbi.nlm.nih.gov/7380440/}, note = {Source identifier: 7380440} }