The validation of energy and protein intakes by doubly labelled water and 24-hour urinary nitrogen excretion in post-obese subjects

Black AE, Jebb SA, Bingham SA, Runswick SA, Poppitt SD. The validation of energy and protein intakes by doubly labelled water and 24-hour urinary nitrogen excretion in post-obese subjects. J Hum Nutr Diet. 1995; 8(1): 51–64.