Antithyroidic and hepatoprotective properties of high-resolution liquid chromatography–Mass spectroscopy-standardized Piper betle leaf extract in rats and analysis of its main bioactive constituents Panda S, Sharma R, Kar A. Antithyroidic and hepatoprotective properties of high-resolution liquid chromatography–Mass spectroscopy-standardized Piper betle leaf extract in rats and analysis of its main bioactive constituents. Pharmacognosy Magazine. 2018;14(59s):s658-s664.