2631842 EEZS ethanol extract of Zizyphus jujuba var. spinosa seeds 1 2631839 EEZS ethanol extracts of Z. schinifolium leaves 1 2631840 EEZS extract from the leaves of Z. schinifolium 1 2631838 EEZS extract of the seed of Zizyphus jujuba var. spinosa 1