,Welch Allyn Harvey Elite Double-Head Stethoscope,Anesthesia Case of the Month in: Journal of the American Veterinary Medical Association Volume 224 Issue 2 (),Clinical Anesthesia (9th Edition) - Cullen, Stock, Ortega, et al. - Hardcover,Clinical Anesthesia (9th Edition) - Cullen, Stock, Ortega, et al. - Hardcover