title: Chronic pain: principles of management.
mesh_terms: D015670:Acupuncture Therapy; D000700:Analgesics / Q000008:administration & dosage; D001923:Brain Chemistry; D002490:Central Nervous System / Q000033:anatomy & histology / Q000601:surgery; D004599:Electric Stimulation Therapy; D004723:Endorphins / Q000032:analysis; D006801:Humans; D006990:Hypnosis; D010148:Intractable Pain / Q000503:physiopathology / Q000523:psychology / Q000628:therapy*; D010348:Patient Care Team; D013376:Substantia Gelatinosa / Q000503:physiopathology; D009435:Synaptic Transmission
chemical_list: D000700:Analgesics; D004723:Endorphins