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Amy M. SantonastasoDepartment of Clinical Studies, New Bolton Center, University of Pennsylvania, Kennett Square, PA 19348.

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Laura E. FaulknerDepartment of Clinical Studies, New Bolton Center, University of Pennsylvania, Kennett Square, PA 19348.

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Kelsey R. HiltonDepartment of Clinical Studies, New Bolton Center, University of Pennsylvania, Kennett Square, PA 19348.

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JoAnn SlackDepartment of Clinical Studies, New Bolton Center, University of Pennsylvania, Kennett Square, PA 19348.

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Contributor Notes

Dr. Santonastaso's present address is Department of Large Animal Clinical Sciences, College of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, TX 77843.

Address correspondence to Dr. Slack (slackj@vet.upenn.edu.