RT Journal A1 Kuehn BM T1 ANtipsychotic risks JF JAMA JO JAMA YR 2009 FD February 25 VO 301 IS 8 SP 817 OP 817 DO 10.1001/jama.2009.199 UL http://dx.doi.org/10.1001/jama.2009.199 AB To assess the relative risks of atypical and typical antipsychotic drugs, scientists conducted a retrospective cohort study of Medicaid users in Tennessee (Ray WA et al. N Engl J Med. 2009;360[3]:225-235). The study included more than 44 000 users of typical antipsychotics, more than 46 000 users of atypical antipsychotics, and 186 000 matched controls.