Practice guideline for pulmonary hypertension in sickle cell: direct evidence needed before universal adoption.
Hassell KL, Afenyi-Annan A, Ballas SK, Buchanan GR, Eckman JR, Jordan L, Lanzkron S, Lottenberg R, Ware R. Practice guideline for pulmonary hypertension in sickle cell: direct evidence needed before universal adoption. Am J Respir Crit Care Med. 2014 Jul 15; 190(2):237-8.