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Survival for mouse pups exposed to room air (RA), RA + NO, and >95% O2 ± NO. The closed triangles connected by the dashed line represent the pups exposed to >95% O2 alone (n = 30); the open circles connected by the dotted line represent the pups exposed to >95% O2 + 10 ppm NO (n = 19); the open triangles connected by the dashed line represent the pups exposed to room air + 10 ppm NO (n = 17); and the closed circles connected by the solid line represent pups exposed to room air (n = 61)
