Making Artificial Intelligence Lemonade Out of Data Lemons: Adaptation of a Public Apical Echo Database for Creation of a Subxiphoid Visual Estimation Automatic Ejection Fraction Machine Learning Algorithm - Blaivas, Michael; Blaivas, Laura N.; Campbell, Kendra; Thomas, Joseph; Shah, Sonia; Yadav, Kabir; Liu, Yiju Teresa (Journal of ultrasound in medicine, 2022)