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International Journal of Phytomedicine and Phytotherapy

Fig. 4 | Clinical Phytoscience

Fig. 4

From: A preliminary study of the efficacy of the polyherbal preparation Sao Thong Tai for erectile dysfunction among elderly men: a double-blind, randomized controlled trial

Fig. 4

The mean Quality of Sexual Function (QSF) scores between the STT and placebo groups during the study period: The mean QSF scores showed a significant increase in the STT group (the gray column, N = 27) (p<0.001) from the second visit (week 4) to the end of treatment (the fourth visit, week 12), whereas the scores of the placebo group (the white column, N = 27) decreased gradually to the end of the follow-up period

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