%0 Journal Article %A David Widory %T Oxygen and nitrogen isotopic fractionations during human respiration %J Comptes Rendus. Biologies %D 2004 %P 729-734 %V 327 %N 8 %I Elsevier %R 10.1016/j.crvi.2004.07.001 %G en %F CRBIOL_2004__327_8_729_0