CORD-19:03d3df2f6a5754f5325e881ff83c35d4d4100fc3 / 84-125 JSONTXT

{"project":"CORD-PICO","denotations":[{"id":"p1_all0","span":{"begin":0,"end":41},"obj":"Outcome"},{"id":"p2_o1","span":{"begin":0,"end":41},"obj":"Other"}],"text":"length of stay in an emergency department"}