RT Article T1 Youth violence prevention: The physician's role JF The journal of the American Medical Association VO 283 IS 9 SP 1202 OP 1203 A1 Christoffel, Kaherine Kaufer A2 Witwer, Martha A2 Spivak, Howard LA English YR 2000 UL https://krimdok.uni-tuebingen.de/Record/1912753847 DO 10.1001/jama.283.9.1202