M. D. SalmanFrom the Department of Environmental Health, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO 80523 (Salman), the Center for Animal Health and Productivity, Department of Clinical Sciences, New Bolton Center, School of Veterinary Medicine, University of Pennsylvania, Kennett Square, PA 19348 (Curtis), and the Section of Epidemiology and Biostatistics, Department of Preventive Medicine, Rush-Presbyterian-St Luke's Medical Center, 1743 W Harrison St, Chicago, IL 60612 (Shott).
C. R. CurtisFrom the Department of Environmental Health, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO 80523 (Salman), the Center for Animal Health and Productivity, Department of Clinical Sciences, New Bolton Center, School of Veterinary Medicine, University of Pennsylvania, Kennett Square, PA 19348 (Curtis), and the Section of Epidemiology and Biostatistics, Department of Preventive Medicine, Rush-Presbyterian-St Luke's Medical Center, 1743 W Harrison St, Chicago, IL 60612 (Shott).
S. ShottFrom the Department of Environmental Health, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO 80523 (Salman), the Center for Animal Health and Productivity, Department of Clinical Sciences, New Bolton Center, School of Veterinary Medicine, University of Pennsylvania, Kennett Square, PA 19348 (Curtis), and the Section of Epidemiology and Biostatistics, Department of Preventive Medicine, Rush-Presbyterian-St Luke's Medical Center, 1743 W Harrison St, Chicago, IL 60612 (Shott).