Before revision:  Using medical imaging as a point of departure, we conducted three iterations of design activities to formulate CheXplain---a system that enables physicians to explore and understand AI-enabled chest X-ray analysis:   a paired survey between referring physicians and radiologists reveals whether, when, and what kinds of explanations are needed;
After revision:  Using medical imaging as a point of departure, we conducted three iterations of design activities to formulate CheXplain---a system that enables physicians to explore and understand AI-enabled chest X-ray analysis:  (1) a paired survey between referring physicians and radiologists reveals whether, when, and what kinds of explanations are needed;