The urea/creatinine ratio: is it useful for field studies?
D002675:Child, Preschool; D003404:Creatinine / Q000652:urine*; D004034:Diet Surveys; D004044:Dietary Proteins / Q000032:analysis*; D006166:Guatemala; D006801:Humans; D009749:Nutrition Surveys; D011488:Protein Deficiency / Q000652:urine; D014508:Urea / Q000652:urine*
D004044:Dietary Proteins; D014508:Urea; D003404:Creatinine