1. Buffered versus plain lidocaine for digital nerve blocks;Bartfield;Ann. Emerg. Med.,1993
2. Buffered lidocaine decreases the pain of digital anaesthesia in the foot;Friedman;J. Am. Podiatric. Med. Assoc,1997
3. Reducing the pain of intradermal lignocaine injection by ph buffering;McGlone;Arch. Emerg. Med.,1990
4. Sodium bicarbonate attenuates pain on skin infiltration with lidocaine, with or without epinephrine;McKay;Anaeths. Analg.,1987
5. Effect of pH modification by bicarbonate on pain after subcutaneous lidocaine injection;Parham;Can. J. Surg.,1996