title: The renal medulla and water economy in vesper sparrows (Pooecetes gramineus).
mesh_terms: D000818:Animals; D001717:Birds / Q000378:metabolism*; D007668:Kidney / Q000166:cytology / Q000378:metabolism*; D007679:Kidney Medulla / Q000378:metabolism; D013045:Species Specificity; D014867:Water / Q000378:metabolism*; D014868:Water Deprivation
chemical_list: D014867:Water