@article {layton2005region,
	title = {A region-based mathematical model of the urine concentrating mechanism in the rat outer medulla. II. Parameter sensitivity and tubular inhomogeneity},
	journal = {American Journal of Physiology-Renal Physiology},
	volume = {289},
	number = {6},
	year = {2005},
	pages = {F1367{\textendash}F1381},
	publisher = {American Physiological Society},
	author = {Layton, Anita T and Layton, Harold E}
}