https://www.cnbc.com/2018/07/23/apple-health-former-director-anil-sethi-ciitizen-3-million.html

Three years after it launched a bio fund, venture firm Andreessen Horowitz is finding opportunities in what general partner Vijay Pande calls "dark data."

The siloed nature of medical records means that valuable data often remain hidden from doctors, researchers and patients, making it difficult for people to get the targeted care they need at the most critical times.