Epidemiology
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Letter Randomized Controlled Trial
Calcium, magnesium, and colorectal cancer.
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Exposure to particulate matter (PM) has been associated with deficits in lung function growth among children in Western countries. However, few studies have explored this association in developing countries, where PM levels are often substantially higher. ⋯ Exposure to ambient particulate matter was associated with decreased growth in lung function among Chinese children.