“…method of quantitatively determining faulty assimilation of fat and protein is the balance technique accurately calculating the components in ingested food and chemically determining the residue of the stools (Cooke et al, 1946(Cooke et al, , 1953Wollaeger et al, 1947;Annegers et al, 1948;Comfort et al, 1953 ;Weijers and van de Kamer, 1953;Frazer, 1955;French, 1955;Crowe and Blackburn, 1956;Comfort, 1957;Kalser, 1957). This method has certain disadvantages as a routine clinical diagnostic aid in that it is time-consuming, laborious, and expensive, requiring a metabolic ward and three to five days for the collection of stools.…”