Professioni infermieristiche
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The chronic nonmalignant pain is an underestimated epidemiologic health problem. It is a disease in its own right. It is one of the major reasons because patients use health service. ⋯ These epidemiological studies conducted in different part of the world, reported prevalence rates of chronic pain ranging from 16-53%. They shows a high heterogeneity of results concerning diagnosis and methods. Although limited the number of articles, show the high complexity of the phenomenon.