Matthew J. Budoff, LA BioMed researcher (IMAGE) LA BioMed Caption Matthew J. Budoff, M.D., LA BioMed researcher, was the principal investigator for a study in JAMA that found testosterone treatments may increase cardiac risks. Credit LA BioMed Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.