Do we excrete what we eat? Analysis of stable nitrogen isotope ratios of human urinary urea - Hülsemann, Frank; Koehler, Karsten; Flenker, Ulrich; Schänzer, Wilhelm (Rapid communications in mass spectrometry, 2017)
Keywords: Adult; Hair; Human subjects; Humans; Isotope ratios; Male; Mass Spectrometry - methods; Metabolism; Middle Aged; Nitrogen; Nitrogen Isotopes - metabolism; Nitrogen Isotopes - urine; Reproducibility of Results; Urine; Variance; Xanthenes - chemistry; Young Adult; Germany