Portopulmonary hypertension: a report from the US-based REVEAL Registry.
Krowka MJ, Miller DP, Barst RJ, Taichman D, Dweik RA, Badesch DB, McGoon MD. Portopulmonary hypertension: a report from the US-based REVEAL Registry. Chest. 2012 Apr; 141(4):906-915.