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Retraction Note to: Three tetranortriterpenoids from Walsura yunnanensis

The Original Article was published on 01 January 2013

Retraction Note to: Chemistry of Natural Compounds 2013, 48(6):1013–1016

DOI 10.1007/s10600-013-0452-0

This article has been retracted by the author Lihui Jiang because the copyright owner of the article is the Shanghai Institute of Materia Medica where the research was conducted; the author and Central South University did not contribute to the research; and no permission was obtained from the Shanghai Institute of Material Medica for the publication of the article.

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Correspondence to Lihui Jiang.

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The online version of the original article can be found under doi:10.1007/s10600-013-0452-0.

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Jiang, L. Retraction Note to: Three tetranortriterpenoids from Walsura yunnanensis . Chem Nat Compd (2015). https://doi.org/10.1007/s10600-015-1366-9

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