@article {fry2015impacts, title = {Impacts of nitric oxide and superoxide on renal medullary oxygen transport and urine concentration}, journal = {American Journal of Physiology-Renal Physiology}, volume = {308}, number = {9}, year = {2015}, pages = {F967{\textendash}F980}, publisher = {American Physiological Society Bethesda, MD}, author = {Fry, Brendan C and Edwards, Aur{\'e}lie and Layton, Anita T} }