Composition #2: Jayaprakasam, B., Zhang, YJ., Seeram, NP., Nair, MG. Growth inhibition of human tumor cell lines by withanolides from Withania somnifera leaves. LIFE SCIENCES, 2003, vol. 74, no. 1, p. 125–132. DOI: 10.1016/j.lfs.2003.07.007.
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