About the Authors

Cheryl A. London

Contributed equally to this work with: Cheryl A. London, Heather L. Gardner

london.20@osu.edu

Affiliation Departments of Veterinary Biosciences and Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, Ohio, United States of America

Heather L. Gardner

Contributed equally to this work with: Cheryl A. London, Heather L. Gardner

Affiliation Departments of Veterinary Biosciences and Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, Ohio, United States of America

Tamra Mathie

Affiliation Departments of Veterinary Biosciences and Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, Ohio, United States of America

Nicole Stingle

Affiliation Departments of Veterinary Biosciences and Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, Ohio, United States of America

Roberta Portela

Affiliation Department of Veterinary Clinical Medicine, University of Illinois at Urbana-Champaign, College of Veterinary Medicine, Champaign, Illinois, United States of America

Michael L. Pennell

Affiliation Division of Biostatistics, College of Public Health, The Ohio State University, Columbus, Ohio, United States of America

Craig A. Clifford

Affiliation Hope Veterinary Specialists, Malvern, Pennsylvania, United States of America

Mona P. Rosenberg

Affiliation Veterinary Cancer Group, Tustin, California, United States of America

David M. Vail

Affiliation Department of Medical Sciences, School of Veterinary Medicine, University of Wisconsin, Madison, Madison, Wisconsin, United States of America

Laurel E. Williams

Affiliation Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina, United States of America

Kim L. Cronin

Affiliation New England Veterinary Oncology Group, Waltham, Massachusetts, United States of America

Heather Wilson-Robles

Affiliation Department of Small Animal Clinical Sciences, College of Veterinary Medicine, Texas A&M University, College Station, Texas, United States of America

Antonella Borgatti

Affiliation Department of Veterinary Clinical Sciences, University of Minnesota College of Veterinary Medicine, St. Paul, Minnesota, United States of America

Carolyn J. Henry

Affiliation Department of Veterinary Medicine and Surgery, College of Veterinary Medicine, University of Missouri, Columbia, Missouri, United States of America

Dennis B. Bailey

Affiliation Oradell Animal Hospital, Paramus, New Jersey, United States of America

Jennifer Locke

Affiliation Southeast Veterinary Oncology and Medicine, Orange Park, Florida, United States of America

Nicole C. Northrup

Affiliation Department of Small Animal Medicine and Surgery, University of Georgia, College of Veterinary Medicine, Athens, Georgia, United States of America

Martin Crawford-Jakubiak

Affiliation Sage Centers for Veterinary Specialty and Emergency Care, Concord, California, United States of America

Virginia L. Gill

Affiliation VCA Katonah Bedford Veterinary Center, Bedford Hill, New York, United States of America

Mary K. Klein

Affiliation Southwest Veterinary Oncology, Tucson, Arizona, United States of America

David M. Ruslander

Affiliation Veterinary Specialty Hospital of the Carolinas, Cary, North Carolina, United States of America

Doug H. Thamm

Affiliation Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado, United States of America

Brenda Phillips

Affiliation Veterinary Specialty Hospital of San Diego, San Diego, California, United States of America

Gerald Post

Affiliation The Veterinary Cancer Center, Norwalk, Connecticut, United States of America

Competing Interests

CL, CC, MR, DV, MK, DT received honoraria paid by Zoetis. Several of the authors are employed by private veterinary practices that participated in this clinical trial: Hope Veterinary Specialists, Veterinary Cancer Group, New England Veterinary Oncology Group, Oradell Animal Hospital, Southeast Veterinary Oncology and Medicine, Sage Centers for Veterinary Specialty and Emergency Care, VCA Katonah Bedford Veterinary Center, Southwest Veterinary Oncology, Veterinary Specialty Hospital of the Carolinas and Veterinary Specialty Hospital of San Diego. There are no competing interests and no additional financial disclosures to report as a result of these affiliations. Therefore, this does not alter the authors' adherence to PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: CAL. Performed the experiments: CAL HLG RP MLP CAC MPR DMV LEW KLC HW-R AB CJH DBB JL NCN MC-J VLG MKK DMR DHT BP GP. Analyzed the data: CAL HLG MLP. Contributed reagents/materials/analysis tools: MLP. Wrote the paper: CAL HLG MLP. Organized and quality check on data entry: TM NS.