Extraction optimization, Total Phenolic-Flavonoids content, HPLC-DAD finger printing, antimicrobial, antioxidant and cytotoxic potentials of Chinese folklore Ephedra intermedia Schrenk & C. A. Mey. Braz. J. Pharm. Sci. 2023;58. doi:10.1590/s2175-97902022e20989