Paired Indoor and Outdoor Nitrogen Dioxide Associated With Childhood Asthma Outcomes in a Mixed Rural-Urban Setting: A Feasibility Study oleh Chung-Il Wi, Janneane F. Gent, Joshua T. Bublitz, Katherine S. King, Euijung Ryu, Keli Sorrentino, Julie Plano, Lisa McKay, Julie Porcher, Philip H. Wheeler, Sergio E. Chiarella, Andrew T. DeWan, Krystal J. Godri Pollitt, Beverley J. Sheares, Brian Leaderer, Young J. Juhn