RT Journal T1 INteraction of duloxetine and warfarin causing severe elevation of international normalized ratio JF JAMA JO JAMA YR 2006 FD April 5 VO 295 IS 13 SP 1513 OP 1518 DO 10.1001/jama.295.13.1517 UL http://dx.doi.org/10.1001/jama.295.13.1517 AB