1. Rafi AN (2001) Abdominal field block: a new approach via the lumbar triangle. Anaesthesia 56:1024–1026
2. McDonnell JG, O’Donnell BD, Tuite D, Farrell T, Power C (2004) The regional abdominal field infiltration (RAFI) technique: computerized tomographic and anatomical identification of a novel approach to the transversus abdominis neuro-vascular fascial plane. Anesthesiology 101:A899
3. Siddiqui MRS, Sajid MS, Uncles DR, Uncles R, Cheek L, Baig MK (2011) A meta-analysis on the clinical effectiveness of transversus abdominis plane block. J Clin Anesth 23:7–14
4. Hebbard P, Fujiwara Y, Shibata Y, Royse C (2007) Ultrasound-guided transversus abdominis plane (TAP) block. Anaesth Intens Care 35:616–618
5. Chetwood A, Agrawal S, Hrouda D, Doyle P (2011) Laparoscopic assisted transverses abdominis plane block: a novel insertion technique during laparoscopic nephrectomy. Anaesthesia 66:317–318