On the homogeneity of stools with respect to bile acid composition and normal day-to-day variations: a detailed qualitative and quantitative study using capillary column gas chromatography-mass spectrometry.
Clin Chim Acta. 1987 Feb 15;162(3):257-75. doi: 10.1016/0009-8981(87)90045-3.
Clin Chim Acta. 1987.
PMID: 3568403