%0 Conference Paper %B JOURNAL OF THE AMERICAN SOCIETY OF NEPHROLOGY %D 2003 %T Impaired countercurrent exchange in a mathematical model of a urine concentrating mechanism lacking UT-B urea transporter. %A Layton, HE %A Layton, AT %B JOURNAL OF THE AMERICAN SOCIETY OF NEPHROLOGY %I LIPPINCOTT WILLIAMS & WILKINS 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA %V 14 %P 76A–76A %G eng