Epidemiologic features that may distinguish between building-associated illness outbreaks due to chemical exposure or psychogenic origin.
D005160:Facility Design and Construction; D006801:Humans; D009784:Occupational Diseases / Q000139:chemically induced / Q000209:etiology* / Q000523:psychology; D011602:Psychophysiologic Disorders / Q000209:etiology*; D014691:Ventilation