1. Ibuprofen versus paracetamol (acetaminophen) for pain relief after surgical removal of lower wisdom teeth (Protocol for a Cochrane Review);Afzal;The Cochrane Library,2004
2. Ibuprofen for pain relief after surgical removal of lower wisdom teeth (Protocol for a Cochrane Review);Afzal;The Cochrane Library,2004
3. Alderson P Green S Higgins JPT Cochrane Reviewers' Handbook 4.2.2 (updated March 2004) http://www.cochrane.org/resources/handbook/hbook.htm
4. Single dose oral rofecoxib for postoperative pain (Cochrane Review);Barden;The Cochrane Library,2004
5. Single dose oral diclofenac for postoperative pain (Cochrane Review);Barden;The Cochrane Library,2004