Gu, W., Liu, M., Sun, B., Guo, M., Wu, J., & Li, N. (2018). Profiling of polyunsaturated fatty acids in human serum using off-line and on-line solid phase extraction-nano-liquid chromatography-quadrupole-time-of-flight mass spectrometry. Journal of Chromatography. A. https://doi.org/10.1016/j.chroma.2018.01.015 (Original work published 2018)