Comment on

• Postoperative cognitive function as an outcome of regional anesthesia and analgesia.

  Wu CL, Hsu W, Richman JM, Raja SN. Wu CL, et al. Reg Anesth Pain Med. 2004 May-Jun;29(3):257-68. doi: 10.1016/j.rapm.2003.11.007. Reg Anesth Pain Med. 2004. PMID: 15138912 Review.
• Effect of postoperative epidural analgesia on morbidity and mortality following surgery in medicare patients.

  Wu CL, Hurley RW, Anderson GF, Herbert R, Rowlingson AJ, Fleisher LA. Wu CL, et al. Reg Anesth Pain Med. 2004 Nov-Dec;29(6):525-33; discussion 515-9. doi: 10.1016/j.rapm.2004.07.002. Reg Anesth Pain Med. 2004. PMID: 15635510