Like doctors, pharmacists need to be a part of a larger group to afford investments in electronic health record systems and other technology.

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Doctors need to be a part of a larger group practice to afford large investments in electronic health record systems and other technology.

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"I call it Homebrew Health, " says one angel investor, alluding to the Homebrew Computer Club of the 1970s, the group of electronic enthusiasts, including Steve Jobs and Steve Wozniak, whose technology hobby led to the birth of the personal computer.

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Jennifer Lynch, a lawyer at the Electronic Frontier Foundation, a group based in San Francisco that keeps a watch on how digital technology encroaches on civil freedoms, also questions the quality of the data.

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