1. Regional anaesthesia in developing countries
2. Berry JA, Arnold WP, Hughes SC, Brown M, Busch LJ, DuPen S, Fritz MP, Gotta AW, Greene E, Lees DE, Peterson G, Rosenberg AD, Smalkey M, Stackhouse R. Recommendations for Infection Control for the Practiceof Anesthesiology (Second edition): American Society of Anaesthesiologists, 1999.