Investigation of differences between Cold and Hot nature of Mahuang decoction and Maxing Shigan decoction based on cold/hot plate differentiating assay Influence of different compatibility on contents of calcium and magnesium dissolution in Maxing Shigan decoction Pharmacokinetics of Maxing Shigan decoction in normal rats and RSV pneumonia model rats by HPLC-MS/MS Studies on factors influencing on ephedrine contents in Maxing Shigan decoction Comparison of properties of Mahuang decoction and Maxing Shigan decoction based on biothermodynamics