TY - JOUR T1 - <em>CTLA4</em> gene polymorphisms are associated with chronic bronchitis JF - European Respiratory Journal JO - Eur Respir J DO - 10.1183/09031936.00141808 AU - G. Zhu AU - A. Agusti AU - A. Gulsvik AU - P. Bakke AU - H. Coxson AU - D.A. Lomas AU - E.K. Silverman AU - S.G. Pillai A2 - , Y1 - 2009/04/22 UR - http://erj.ersjournals.com/content/early/2009/04/22/09031936.00141808.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -