Tech giants like Amazon and Apple are expanding their businesses to include electronic health records -- which contain data on diagnoses, prescriptions and other medical information. That’s creating both opportunities and spurring privacy concerns. Here’s what to know. Photo Composite: Heather Seidel/ The Wall Street Journal

Don’t miss a WSJ video, subscribe here: http://bit.ly/14Q81Xy

More from the Wall Street Journal:
Visit WSJ.com: http://www.wsj.com
Visit the WSJ Video Center: https://wsj.com/video

On Facebook:   / videos  
On Twitter:   / wsj  
On Snapchat: https://on.wsj.com/2ratjSM