Am J Respir Crit Care Med. 2010 Feb 1;181(3):202-3.

Vasodilators in patients with chronic obstructive pulmonary disease and pulmonary hypertension: not ready for prime time!

Humbert M, Simonneau G.

Comment on Am J Respir Crit Care Med. 2010 Feb 1;181(3):270-8.