Effects of serum containing Dahuang Fuzi Decoction on JAK2/STAT3 signal pathway in mice with severe acute pancreatitis Preliminary study on serum pharmacochemistry of Dahuang Fuzi Decoction Compatability chemistry of acid-alkaline pair medicine of Dahuang and Fuzi in Dahuang Fuzi decoction Compatability chemistry of acid-alkaline pair medicine of Dahuang and Fuzi in Dahuang Fuzi decoction