RT Article T1 Pediatric magnet ingestions after federal rule changes, 2009-2019 JF The journal of the American Medical Association VO 324 IS 20 SP 2102 OP 2104 A1 Flaherty, Michael R. A2 Lee, Lois K. A2 Vangel, Mark A2 Buchmiller, Terry LA English YR 2020 UL https://krimdok.uni-tuebingen.de/Record/1912648261 DO 10.1001/jama.2020.19153