1. Current status of education in anesthesia and sedation in New Zealand, 1988;Barclay;Anesth Prog,1989
2. Managing local anesthesia problems in the endodontic patient;Walton;J Am Dent Assoc,1992
3. Local anesthetic failure in endodontics;Hargreaves;Endod Topics,2002
4. Difficulties in achieving local anesthesia;Kaufman;J Am Dent Assoc,1984
5. Patient perceptions of failure to achieve optimal local anesthesia;Weinstein;Gen Dent,1985