Source:http://linkedlifedata.com/resource/umls/id/C0324322
NCI: The Bull Terrier is a thick-set muscular, well-proportioned animal with a short, dense coat that comes in pure white, black, brindle, red, fawn and tri-color. Its most distinctive feature is its head, which is almost flat at the top, sloping evenly down to the end of the nose. Standard Bull Terrier Height: 20-24 inches (51-61 cm.) Weight: 45-80 pounds (20-36 kg.) Miniature Bull Terrier Height: 10-14 inches (25-33 cm.) Weight: up to 24-33 pounds (11-15 kg.) (dogbreedinfo.com)