The Lancet Respiratory Medicine
The Lancet Respiratory Medicine > 2015 > 3 > 4 > 310-318
The Lancet Respiratory Medicine > 2015 > 3 > 4 > 282-289
The Lancet Respiratory Medicine > 2015 > 3 > 4 > 290-300
The Lancet Respiratory Medicine > 2015 > 3 > 4 > 319-327