RT Journal A1 Possner A T1 TOrsades de pointes JF JAMA JO JAMA YR 2012 FD August 22 VO 308 IS 8 SP 745 OP 745 DO 10.1001/jama.2012.3647 UL http://dx.doi.org/10.1001/jama.2012.3647 AB