Optimization of microwave-assisted extraction of silymarin from Silybum marianum straws by response surface methodology and quantification by high-performance liquid chromatograph method Ruan H-S, Zhang H-F, Teng K. Optimization of microwave-assisted extraction of silymarin from Silybum marianum straws by response surface methodology and quantification by high-performance liquid chromatograph method. Pharmacognosy Magazine. 2018;14(53):22-26.