PT  - JOURNAL ARTICLE
AU  - R. Beasley
AU  - F. D. Martinez
AU  - A. Hackshaw
AU  - K. F. Rabe
AU  - P. J. Sterk
AU  - R. Djukanovic
TI  - Safety of long-acting β-agonists: urgent need to clear the air remains
AID  - 10.1183/09031936.00163408
DP  - 2009 Jan 01
TA  - European Respiratory Journal
PG  - 3--5
VI  - 33
IP  - 1
4099  - http://erj.ersjournals.com/content/33/1/3.short
4100  - http://erj.ersjournals.com/content/33/1/3.full
SO  - Eur Respir J2009 Jan 01; 33