Correction: The dinosaur tracks of Tyrants Aisle: An Upper Cretaceous ichnofauna from Unit 4 of the Wapiti Formation (upper Campanian), Alberta, Canada. by PLOS ONE Staff

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Rhinoscleroma Causing Upper Airway Obstruction by Geetika Verma, D Kanawaty, R Hyland

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Upper Gastrointestinal Tract Crohn's Disease by Hugh J Freeman

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Safety and Efficacy of Hemospray® in Upper Gastrointestinal Bleeding by Alan Hoi Lun Yau, George Ou, Cherry Galorport, Jack Amar, Brian Bressler, Fergal Donnellan, Hin Hin Ko, Eric Lam, Robert Allan Enns

“…BACKGROUND: Hemospray (Cook Medical, USA) has recently been approved in Canada for the management of nonvariceal upper gastrointestional bleeding (UGIB).…”
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Time to Endoscopy and Outcomes in Upper Gastrointestinal Bleeding by Nitin Sarin, Neerav Monga, Paul C Adams

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The Utility of Endoscopic Biopsies in Patients with Normal Upper Endoscopy by Anouar Teriaky, Abdullah AlNasser, Carolyn McLean, James Gregor, Brian Yan

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Regional Differences in Outcomes of Nonvariceal upper Gastrointestinal Bleeding in Saskatchewan by Michael O’Byrne, Erin L Smith-Windsor, Chris R Kenyon, Sanchit Bhasin, Jennifer L Jones

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Standards of Care: Management of Patients with Nonvariceal Upper Gastrointestinal Hemorrhage by Guido Van Rosendaal

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Hemodynamic Response to Upper Airway Obstruction in Hypertensive and Normotensive Pregnant Women by John Reid, Riley A. Glew, Joe Mink, John Gjevre, Mark Fenton, Robert Skomro, Femi Olatunbosun

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Role of Endoscopy in the Investigation of Upper Gastrointestinal Symptoms in HIV-Infected Patients by C Mel Wilcox

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Predictors of a Variceal Source among Patients Presenting with Upper Gastrointestinal Bleeding by Ahmad Alharbi, Majid Almadi, Alan Barkun, Myriam Martel, The REASON Investigators

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Primary Pancreatic Lymphoma: A Rare Cause of Massive Upper Gastrointestinal Hemorrhage by Marc P Dupre, Elijah Dixon, Steven J Heitman

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Applying baseflow approach to the environmental flow needs of the Similkameen River Watershed in British Columbia, Canada by Hongli Chen, Qiang Li, Qiaoqiao Wang, Xuanjiao Chai, Yaping Wang

“…Study region: The Similkameen River Watershed, an international basin, with a substantial portion located in British Columbia, Canada. It is a tributary to the Columbia River, which is the heavily regulated watershed in North America. …”
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The Role of Rapid Endoscopy for High-Risk Patients with Acute Nonvariceal Upper Gastrointestinal Bleeding by Laura E Targownik, Sanjay Murthy, Leila Keyvani, Shauna Leeson

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Management of Acute Bleeding Upper GI Ulcers in the Era of Endoscopic and IV PPI Therapy by Alexandra Ilnyckyj, George Mathew

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Adult and Immature Calvertiellidae (Insecta: Palaeodictyoptera) from the Upper Paleozoic of New Mexico and Czechoslovakia by Jarmila Kukalova-Peck, Stewart B. Peck

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Vascular Tortuosities of the Upper Eyelid: A New Clinical Finding in Fabry Patient Screening by Langis Michaud

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Numerical Simulation Study of Pore-Throat Evolution of Upper Paleozoic in Ordos Basin, China by Qing Cao, Zhangxing Chen, JingZhou Zhao, Jiacheng Dang, Jiaxuan Song, Bin Chen

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Surgical Versus Nonsurgical Interventions to Relieve upper Airway Obstruction in Children with Pierre Robin Sequence by Karen Kam, Meghan McKay, Joanna MacLean, Manisha B Witmans, Sheldon Spier, Ian Mitchell

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Prediction and Prevention of Upper Gastrointestinal Bleeding after Cardiac Surgery: A Case Control Study by Mamatha Bhat, Martin Larocque, Marcos Amorim, Karl Herba, Myriam Martel, Benoît De Varennes, Alan Barkun

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