[1] Nationwide Childrens Hosp, Abigail Wexner Res Inst, Ctr Pediat Trauma Res, Columbus, OH 43205 USA
[2] Nationwide Childrens Hosp, Abigail Wexner Res Inst, Ctr Injury Res & Policy, Columbus, OH 43205 USA
[3] Ohio State Univ, Nationwide Childrens Hosp BRANCH, Biostat Resource, Columbus, OH USA
[4] Ohio Univ, Heritage Coll Osteopath Med, Dublin Campus, Dublin, OH USA
[5] Nationwide Childrens Hosp, Dept Emergency Med, Columbus, OH USA
[6] Ohio State Univ, Coll Med, Dept Pediat, Columbus, OH 43210 USA