Letter to the Editor.
Department of Medicine & Epidemiology, School of Veterinary Medicine, University of California, Davis, CA.
L C
LC
Visser
Department of Medicine & Epidemiology, School of Veterinary Medicine, University of California, Davis, CA.
M K
MK
Im
Department of Medicine & Epidemiology, School of Veterinary Medicine, University of California, Davis, CA.
L R
LR
Johnson
Department of Medicine & Epidemiology, School of Veterinary Medicine, University of California, Davis, CA.
J A
JA
Stern