For generations, the model of how people in the developed world access health care services has involved face-to-face encounters between doctors and patients in brick-and-mortar medical facilities. The contours of that model are well known: A patient arrives in a clinic, registers her insurance at the front desk, and waits. Then a nurse or an aide ushers her into a sterile room, takes her vital signs, and hands her a paper gown. Some minutes later, a doctor in a white coat enters the room, asks...
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