Randomised, double blind, placebo-controlled trial of selenium supplementation in adult asthma
Seif O Shaheen, Roger B Newson, Margaret P Rayman, Angela P-L Wong, Michael K Tumilty, Joanna M Phillips, James F Potts, Frank J Kelly, Patrick T White, Peter G J Burney
Thorax Jun 2007, 62 (6) 483-490; DOI: 10.1136/thx.2006.071563