Evidence for a non-plasma source of urea in sweat.
D000818:Animals; D002247:Carbon Isotopes; D002415:Cats; D006801:Humans; D008297:Male; D011865:Radioisotope Dilution Technique; D013542:Sweat / Q000378:metabolism*; D014508:Urea / Q000097:blood* / Q000378:metabolism*
D002247:Carbon Isotopes; D014508:Urea