Prevalence and distribution of psychosomatic conditions in an urban population according to social class. A discussion of the epidemiological method.
D004812:Epidemiologic Methods; D006801:Humans; D015995:Prevalence; D011602:Psychophysiologic Disorders; D011611:Psychosomatic Medicine; D012923:Social Class; D012961:Sociology; D014505:Urban Population
PSYCHOSOMATIC MEDICINE; SOCIOLOGY