Letters to the editor: PDF OnlyGaar Equation Is Not a Reliable Predictor of Pulmonary Capillary PressureCope, Dons K. MD; Parker, James C. MD; Allison, Ronald C. MD; Taylor, Aubrey E. PhD Author Information University of South Alabama Medical Center. Mobile. AL Critical Care Medicine: March 1989 - Volume 17 - Issue 3 - p 300 Buy © Williams & Wilkins 1989. All Rights Reserved.