1. Prairie Diagnostic Services Inc.; Saskatoon; SK; Canada; S7N5B4
2. C.A.R.E Centre Animal Hospital; Calgary; AB; Canada; T2H2Y4
3. Animal Skin and Allergic Clinic; Lynnwood; WA; 98037; USA
4. The Fred Hutchinson Cancer Research Center Experimental Histopathology Shared Resource Laboratory; Seattle; WA; 98109; USA