von Willedbrands disease is divided into three types:
|vWD Type I||decreased vWD factor|
|vWD Type II||normal vWD factor but abnormal multimers|
|vWD Type III||absence of vWD factor|
The coagulation study of  ruled out Type II in Bianca. (Type II is commonly found in Collies, Chinese Cresteds, and Pointers.) Since Bianca has some von Willebrands factor, this rules out Type III (a deadly form of vWD found in Shelties and Scotties). This means that the type of vWD in Norwich terriers is most likely Type I, which is commonly seen in Bernese Mountain Dogs, Pinchers, Kerry Blue Terriers, Manchester Terriers, Papillions, Pembroke Welsh Corgies, and Poodles.
Last updated 20180822
 Shaksper Bianca Minola, AKC registration number RM34138201, born 20010502, died 20170815.
 Lab Report page 1, page 2, Feb 2003, Antech Diagnostics, Dr. Cox did blood draw, Von Willebrands assay of 48 with normal being 70-180.
 Lab report, Mar 2003, Antech Diagnostics, Dr. Volk did blood draw, Von Willebrands assay of 37 with normal being 70-180.
 Lab report, Jul 2003, Cornell University, Dr. Johnson did blood draw, vWF:Ag=50 measured in an ELISA (normal 70-180, borderline 50-69, carrier 1-49).
 Lab report, Aug 2003, Cornell University, Dr. Shaw did blood draw, vWF:Ag=29 (von Willebrand factor antigen; plasma von Willebran factor concentraion, ELISA method, normal 70-180); vWF:CBA=31 (von Willebrand factor collagen binding assay, ELISA based functional assay), Ag/CBA=1 (ratio of vWF concentration to vWF collagen binding).
 Lab report, Mar 2003, Michigan State University Animal Health Diagnostic Laboratory.
 Orthopedic Foundation for Animals, Aug 2009, NT-TH12/99F-VPI.
 Vetgen LLC, VetGen web page on von Willebrand disease
 Email from Cheryl Hogue, VetGen Research Coordinator, 10 June 2003.
 Email from Ann Arnold, VetGen Office Manager, 21 March 2011.
 Canine Health Information Center, Feb 2011, NT-DNA-24B