Body Surface Area
The calculation is from the formula of DuBois and DuBois:
BSA = (W ^{0.425} x H ^{0.725}) x 0.007184
where the weight is in kilograms and the height is in centimeters.
DuBois D, DuBois EF. A formula to estimate the approximate surface area if height and weight be known. Arch Intern Medicine. 1916; 17:863-71.
Wang Y, Moss J, Thisted R. Predictors of body surface area.J Clin Anesth. 1992; 4(1):4-10.