Bruin, N.C. de

infant tobec energy measurement study composition method body composition weight intake value growth difference equation water length reference chapter effect instrument energy expenditure conductivity energy intake protein circumference anthropometric table energy deposition month change expenditure index ff infants error estimation field prediction visser hka bruin nc dilution centile analysis regression estimate assessment degenhart hj children deposition isotope breast tobec measurements subject calibration metabolizable energy intake period mother result energy requirements skinfold bruin group concentration sample thickness isotope dilution figure reference data preterm infants body water model infancy temperature technique amount fomon prediction equations tissue visser gender adult