Veterinary Surgery. 44():121, JUNE 2015 Issn Print: 0161-3499 Publication Date: June 2015 Print MANAGEMENT OF INTRATHORACIC GRASS AWN MIGRATION USING VIDEO-ASSISTED THORACIC SURGERY IN TWO DOGS. S Shamir;P Mayhew;A Zwingenberger;L Johnson; + Author Information 1Departments of Surgical and Radiological Sciences, and2Medicine and Epidemiology, University of California-Davis, School of Veterinary Medicine. Davis, CA. Checking for direct PDF access through Ovid Abstract Abstract unavailable for this article.