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. Author manuscript; available in PMC: 2011 Oct 20.
Published in final edited form as: Pain Physician. 2011 Jan-Feb;14(1):71–82.

Fig. 1.

Fig. 1

RORT Protocol. ER = extended release; IR = immediate release; IV-PCA = intravenous patient-controlled analgesia; q12h = every 12 hours; q6h = every 6 hours; q6min = every 6 minutes; prn = as needed; RORT = rapid opioid rotation and titration.