||Human Homo sapiens
||DuBois, E.F. (1921) The basal metabolism in fever. J. Am. Med. Assoc., 77, 352 p.353 left column top paragraph
|| Aub, J. C., and Du Bois, E. F.: Clinical Calorimetry, Nineteenth Paper, The Basal Metabolism of Old Men, Archives of Internal Medicine 19: 823 (May) 1917. doi:10.1001/archinte.1917.00080250002001
||P.353 left column top paragraph: "Comparisons with the normal were made according to the usual method of the Sage investigators, who consider that the normal metabolism for a given age
and sex is proportional to the surface area (ref 9). Practically all of the subjects studied were between 20 and 40 years old, and the standard used for this age was 39.5 calories per square meter per hour (primary source)."