β2-Adrenoceptor polymorphisms and asthma phenotypes: interactions with passive smoking
G. Zhang, C. M. Hayden, S-K. Khoo, P. Candelaria, I. A. Laing, S. Turner, P. Franklin, S. Stick, L. Landau, J. Goldblatt, P. N. Le Souëf
European Respiratory Journal Jul 2007, 30 (1) 48-55; DOI: 10.1183/09031936.00123206