Different biological expression characteristics of pungent-hot and bitter-cold herbs on Yang-deficiency rats The Effett of Chinese Herbs on the Circadian Rhythmof Body Temperature and Heart Rate in Rabbits withHypothyroidism(Yang Deficiency) Enects of Sichuan Herba Epimedii on the Concentration of Plasma Middle Molecal er Substances and Sulfhydryl Group of “Yang-defici-ency”Model Animal