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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Characterized CMG extract by HPLC-ESI-MS/MSn. HPLC-ESI-MS/MSn chromatogram of major ginsenoside in CMG extract (a); and the chemical structure of the major compound in CMG extract (b).