How blockchain could help spot breast cancer

What if there was a way to drastically improve the likelihood that breast cancer could be detected early? Mammograms are a good start, but even regular mammograms are far from a guarantee. Their false negative rate is alarmingly high; doctors only detect cancer 80 percent of the time, according to the American Cancer Society. That means that, statistically, for every five women screened that have breast cancer, one will go undiagnosed. Now, experts are exploring a tool that may help,...