1. Asling CW, Hurley LS (1963) The influence of trace elements on skeleton. Clin orthop 27:213–264
2. Bunnet D (1976) Nutrition and bone disease in dog and cat. Vet Rec 98:313–320
3. Charles C, Capen CC, Thomas JR (1989) Calcium-regulating hormones and diseases of abnormal mineral. In: Kaneko JJ (ed) Clinical biochemistry of domestic animals, 4th edn. Elsevier, Maryland, pp 678–752
4. Davis GK, Mertz W (1987) Copper. In: Mertz W (ed) Trace elements in human and animal nutrition, 5th edn. Academic, San Diego, pp 361–364
5. Dibartola SP (2000) Fluid, electrolyte, and acid–base disorders in small animal practice. Saunders Elsevier, St. Louis