Animal Experlments on Meridian-reaching Actions of Traditional Chinese Mcdicinal Herbs HPLC Fingerprint of Radix Stephaniae Tetrandrae Dual-Wevelength TLC Densitometric Determination of Alkaloids in Radix Stephaniae Tetrandrae Determination of aconitine and tetrandrin in separate and compatible decoction of Radix Aconiti and Radix Stephaniae Tetrandrae Studies on immunoregulating effect in single and compatibility with Radix Aconiti and Radix Stephaniae Tetrandrae Exclusive control substance of Radix Stephaniae Tetrandrae