Kyung Haeng Koh

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We thank Chris Taber for insightful comments on an early draft. We also thank Ariel Pakes and other participants at a Harvard Labor Economics Workshop in April, 2014, for helpful comments on a previous draft. We thank Eleanor Dillon and Matthew Wiswall for comments received at a seminar at Arizona State University, February, 2015. We thank the special(More)
BACKGROUND/AIMS Several dietary factors, such as antioxidant vitamins, have potential roles in the development of obstructive lung diseases. However, the results of studies on the relationships between dietary factors and obstructive lung diseases are inconsistent. The aim of this study was to determine which nutrients are related to airway obstruction (AO)(More)
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