Charles Willilam Warlick Grace, M. H., Warlick, C. W., Neff, S. A., & Lila, M. A. (2014). Efficient preparative isolation and identification of walnut bioactive components using high-speed counter-current chromatography and LC-ESI-IT-TOF-MS. FOOD CHEMISTRY, 158, 229–238. https://doi.org/10.1016/j.foodchem.2014.02.117