Blood urea levels and erythrocyte fragility to isosmotic urea during hibernation and activity of Spermophilus tridecimlineatus.
D000818:Animals; D001769:Blood; D004912:Erythrocytes / Q000502:physiology*; D006605:Hibernation; D009994:Osmolar Concentration; D009996:Osmotic Fragility; D012377:Rodentia / Q000097:blood*; D012589:Sciuridae / Q000097:blood*; D014508:Urea / Q000097:blood*
D014508:Urea