Malabsorption syndrome with and without small intestinal bacterial overgrowth: A study on upper gut aspirate using 1H NMR spectroscopy” Lakshmi Bala, Uday Chand Ghoshal, Ujjala Ghoshal, Pratima Tripathi, Asha Misra, G. A. Nagana Gowda, C. L. Khetrapal. Magn. Reson. Med. 56, 738-744 (2006).