No abstract available
MeSH terms
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Africa South of the Sahara / epidemiology
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Air Pollutants / adverse effects
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Asthma / epidemiology
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Asthma / therapy*
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Delivery of Health Care / organization & administration*
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Developing Countries*
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Humans
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Nutrition Disorders / epidemiology
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Occupational Diseases / epidemiology
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Occupational Diseases / therapy
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Pulmonary Disease, Chronic Obstructive / epidemiology
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Pulmonary Disease, Chronic Obstructive / therapy*
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Smoking / adverse effects
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Socioeconomic Factors