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Tanaka T, Hattori T, Kouchi M, Hirano K, Satouchi K (1998). “Methylene-interrupted double bond in polyunsaturated fatty acid is an essential structure for metabolism by the fatty acid chain elongation system of rat liver”. 《Biochim. Biophys. Acta》 1393 (2–3): 299–306. doi:10.1016/s0005-2760(98)00084-8. PMID9748638.
Elliott WJ, Sprecher H, Needleman P (1985). “Physiologic effects of columbinic acid and its metabolites on rat skin”. 《Biochim. Biophys. Acta》 835 (1): 158–60. doi:10.1016/0005-2760(85)90043-8. PMID3924106.