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   Xin Lu et al, 2021, Frontiers in Oncology CrossRef
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   Dariimaa Ganbat et al, 2021, Current Cancer Drug Targets CrossRef
3. Antiproliferative and Apoptosis-Inducing Effects of Lipophilic Vitamins on Human Melanoma A375 Cells in Vitro
   Mai Ishibashi et al, 2012, Biological and Pharmaceutical Bulletin CrossRef