A temperature inversion causing cold air drainage to accumulate as fog in the low-lying areas of the Tamar Valley and Midlands (Source: National Aeronautics.

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Vitamin D3 increased ASL antimicrobial activity.

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Presentation transcript:

A temperature inversion causing cold air drainage to accumulate as fog in the low-lying areas of the Tamar Valley and Midlands (Source: National Aeronautics and Space Administration (NASA) Earth Observatory Image, 2002). A temperature inversion causing cold air drainage to accumulate as fog in the low-lying areas of the Tamar Valley and Midlands (Source: National Aeronautics and Space Administration (NASA) Earth Observatory Image, 2002). D Mészáros et al. BMJ Open Resp Res 2015;2:e000063 ©2015 by British Thoracic Society