Smith, Andrew. "Environmental Tobacco Smoke and IL-4 Polymorphism (C-589T) Gene: Environment Interaction Increases Risk of Wheezing in African-American Infants: The Cincinnati Childhood Allergy and Air Polllution Study (CCAAPS)." Master's thesis, University of Cincinnati, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1163515177Chicago Manual of Style (17th edition)