Evaluation of antimicrobial purchasing by companion animal veterinary facilities in Canada, the United Kingdom, and the United States of America (2019‐2021) oleh J. Scott Weese, Margo Mosher, Rochelle Low, Ellie West, Ben O'Kelley, Jo Ann Morrison, Anne Kimmerlein, Silene St. Bernard, Kathrine Blackie, Ulrika Gronlund, Ian Battersby