%0 Journal Article %T Urinary calcium excretion in healthy children and adolescents %A Manz, F. %A Kehrt, Rainer %A Lausen, Berthold %A Merkel, Anja %J Pediatric Nephrology %V 13 %N 9 %P 894-899 %@ 0931-041X %D 1999-11-24 %I Springer-Verlag %~ DeepDyve