1. Pain mechanisms: a new theory;Melzack;Science,1965
2. Classification of chronic pain: descriptions of chronic pain syndromes and definition of pain terms;Merskey,1994
3. Topical medications as treatment of neuropathic orofacial pain;Nasri-Heir;Dent Clin North Am,2013
4. Clinician's pocket reference: pain management;Gomella,2002
5. Handbook of local anesthesia by Malamed;Malamed,2013