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Mueller SO; Kling M; Arifin Firzani P; et al. (April 2003). "Activation of estrogen receptor alpha and ERbeta by 4-methylbenzylidene-camphor in human and rat cells: comparison with phyto- and xenoestrogens". Toxicol. Lett. 142 (1–2): 89–101. doi:10.1016/S0378-4274(03)00016-X. PMID12765243.