1. Consequences of inadequate postoperative pain relief and chronic persistent postoperative pain;Pain, I.A.S.P.;Anesthesiology Clin N Am,1979
2. Pain scores – as easy as counting to three;Looker, J.; Aldington, D.J.;J R Army Med Corps,2009
3. Patient Controlled Analgesia in the Management of Postoperative Pain;Monemi, M.; Crucitti, M.; De Kock, M.;Drugs,2006
4. Pain management in the special operations environment: regional anesthetics;Calkins, M.D.; Kuzma, P.J.; Larkin, T.M.; Green, D.L.;Mil Med,2001
5. Cost-efficacy of rofecoxib versus acetaminophen for preventing pain after ambulatory surgery. Anesthesiolog y. 2002; 97: 931-7 9;Issioui, T.; Klein, K.W.; White, P.F.,2000