1. Respiratory functions of blood of the yak, llama, camel, Dybowski deer and African elephant;Bartels;Am. J. Physiol.,1963
2. The normal levels of 17-hydroxycorticosteroids in the peripheral blood of man;Bliss;J. clin. Invest.,1953
3. The determination of cortisol and corticosterone in blood: a review;Braunsberg;J. clin. Endocr.,1961
4. Serum enzyme activities in the African elephant;Brown;Experientia,1976
5. Serum calcium, magnesium, phosphorus and alkaline phosphatase in the African elephant, Loxodonta africana;Brown;Comp. Biochem. Physiol.,1977