Researchers at the University of California, San Francisco are building a system that will allow patients to share their medical data with researchers in an efficient and secure manner based on blockchain technology, the International Journal of Science reports. Led by Dexter Hadley, a physician and computational biologist at UCSF, the study is intent on training artificial intelligence to screen mammograms and detect cancer in patients. Hadley believes medical advances are created through the sharing and analysis of patients’ medical data. Researchers believe that blockchain appears to provide a path for good data governance that could help people engage and share valuable data, while offering them control over personal data, the report states. Editor's Note: Privacy Tech recently posted "Blockchain 101: An introduction." 
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