Evaluation of brain-targeted trendence of scutellarin nasal administration Distribution in mouse tissues of P-80 modified neurotoxin nanoparticles after intranasal administration in rats Evaluation of brain-targeting of β-asarone microemulsion by intranasal administration Preparation and quality investigation of β-asarone microemulsion Main progress on intranasal administration of traditional Chinese medicine Study on pharmacokinetics of geniposide in mice administrated by Xingnaojing microemulsion and mPEG2000-PLA modified Xingnaojing microemulsion Studies on baicalin ethylcellulose microspheres for intranasal administration