RT Article T1 A comparative analysis of perceived risks and substance abuse among ethnic groups JF Addictive behaviors VO 25 IS 3 SP 361 OP 371 A1 Ma, Grace Xueqin 1962- A2 Shive, Steve LA English YR 2000 UL https://krimdok.uni-tuebingen.de/Record/1912485923 DO 10.1016/S0306-4603(99)00070-2