Comment on

• Caudal tramadol for postoperative analgesia in pediatric hypospadias surgery.

  Prosser DP, Davis A, Booker PD, Murray A. Prosser DP, et al. Br J Anaesth. 1997 Sep;79(3):293-6. doi: 10.1093/bja/79.3.293. Br J Anaesth. 1997. PMID: 9389843 Clinical Trial.
• Caudal tramadol for postoperative analgesia in hypospadias surgery.

  Russell W. Russell W. Br J Anaesth. 1998 Mar;80(3):408-9. doi: 10.1093/bja/80.3.408-a. Br J Anaesth. 1998. PMID: 9623450 No abstract available.
• S(+)-ketamine for caudal block in paediatric anaesthesia.

  Marhofer P, Krenn CG, Plöchl W, Wallner T, Glaser C, Koinig H, Fleischmann E, Höchtl A, Semsroth M. Marhofer P, et al. Br J Anaesth. 2000 Mar;84(3):341-5. doi: 10.1093/oxfordjournals.bja.a013436. Br J Anaesth. 2000. PMID: 10793593 Clinical Trial.
• Pharmacokinetics of tramadol in children after i.v. or caudal epidural administration.

  Murthy BV, Pandya KS, Booker PD, Murray A, Lintz W, Terlinden R. Murthy BV, et al. Br J Anaesth. 2000 Mar;84(3):346-9. doi: 10.1093/oxfordjournals.bja.a013437. Br J Anaesth. 2000. PMID: 10793594 Clinical Trial.