RT Article T1 Child access prevention laws and nonfatal gun injuries JF Southern economic journal VO 80 IS 1 SP 5 OP 25 A1 DeSimone, Jeff A2 Xu, Jing A2 Markowitz, Sara LA English YR 2013 UL https://krimdok.uni-tuebingen.de/Record/1912477181 DO 10.4284/0038-4038-2011.333