Additional file 3: Figure S3. of Serum metabolic profiling identified a distinct metabolic signature in patients with idiopathic pulmonary fibrosis – a potential biomarker role for LysoPC

MS/MS spectra (DDA experiments) of the metabolic features eluting at 9.6 min acquired in the (a) positive and (b) negative ESI mode and potentially assigned to the [M + H]+ and [M + CHOO]− LysoPC ions, respectively. The main fragments are annotated with the corresponding structure, measured m/z ratio and mass accuracy. (PDF 150 kb