Westerterp, K.R.

energy infant intake study effect bladder water weight method energy deposition difference measurement energy expenditure ff infants mei-pred energy intake group 12 mo value deposition expenditure mother growth protein metabolizable energy intake composition bf infants intervention breast-fed milk intake analysis baseline symptom table breast body composition water turnover weight gain volume energy requirements formula isovolumetric bladder pressure ff girls length pressure tract symptoms bladder function function score mei-tw urine bf girls formula-fed infants ff boys urology 6 months bf boys result urine output darling study formula-fed breast-fed infants tract kj kg 1 bladder wall thickness deuterium-to-infant method breast milk sample method b period 14 mo turnover reference content 24 mo december subscription kj /d netherland service