Precision of glomerular filtration rate determinations for long-term slope calculations is improved by simultaneous infusion of 125I-iothalamate and 131I-hippuran. Apperloo, A J; de Zeeuw, D; Donker, A J; More Apperloo, A J; de Zeeuw, D; Donker, A J; de Jong, P E Less Journal of the American Society of Nephrology : JASN. 7(4):567-572, April 1996. Abstract Abstract Favorite PDF Permissions Go to Full Text of this Article Free