Oral self-emulsifying drug delivery system and its application to preparations of Chinese materia medica Volatile oil from Rhizome of Ligusticum Chuanxiong; Self-emulsifying drug delivery system; In vitro evaluation Preparation and evaluation of silymarin supersaturation self-emulsifying drug delivery system Preliminary study on self-emulsifying drug delivery system of tanshinone Solubilization of self-emulsifying drug delivery system (SEDDS) for curcumin components