Sildenafil Treatment of Primary Pulmonary Hypertension

by Kevin B Laupland, Doug Helmersen, David A Zygun, Sidney M Viner
Published 2003-01-01

Rapid prediction of adverse outcomes for acute normotensive pulmonary embolism: derivation of the Calgary Acute Pulmonary Embolism score

by Kevin Solverson, Christopher Humphreys, Zhiying Liang, Graeme Prosperi-Porta, James E. Andruchow, Paul Boiteau, Andre Ferland, Eric Herget, Doug Helmersen, Jason Weatherald
Published 2021-04-01

Diagnostic Evaluation and Management of Chronic Thromboembolic Pulmonary Hypertension: A Clinical Practice Guideline

by Sanjay Mehta, Doug Helmersen, Steeve Provencher, Naushad Hirani, Fraser D Rubens, Marc De Perrot, Mark Blostein, Kim Boutet, George Chandy, Carole Dennie, John Granton, Paul Hernandez, Andrew M Hirsch, Karen Laframboise, Robert D Levy, Dale Lien, Simon Martel, Gerard Shoemaker, John Swiston, Justin Weinkauf
Published 2010-01-01