RT Article T1 Healthcare indicators and firearm homicide: An ecologic study JF Journal of aggression, conflict and peace research VO 11 IS 2 SP 88 OP 99 A1 Formica, Margaret K. A2 Simons, Nicholas A2 Rajan, Sonali LA English YR 2019 UL https://krimdok.uni-tuebingen.de/Record/1912571722 DO 10.1108/JACPR-10-2018-0385