It is ironic that the most common symptom in the field of medicine is also one of the least understood. The present volume offers" a survey of many of the most recent relevant issues facing the clinician. The chapters included are original works by noted authorities in their respective fields. Pain, being a topic with many dimensions, is well-represented by authors from a wide range of clinical specialties: neurosurgery, psychiatry, radiology, internal medicine, child psy chology, neuropsychology, clinical pharmacology, gerontology, nursing educa tion, endocrinology, and physical medicine....