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PIA, Prospective Inpatient Acutely ill cohort. ROP, Retrospective Outpatient Pulmonary cohort. The black curve represents the Prospective Inpatient Acutely Ill cohort with a 95% prediction interval (black dashed line). The blue curve represents the Retrospective Outpatient Pulmonary cohort with a 95% prediction interval (blue dashed line).
