Isolation, Purification and Identification of Active Chemical Compound Lup-20(29)-ene-3, 28-diol (Betulin) from Tetradium daniellii Leaves and Study the hypoglycemic Effect on Rabbits. UTJsci [Internet]. 2016 Dec. 20 [cited 2024 Dec. 26];6(1):54-61. Available from: http://mail.jsci.utq.edu.iq/index.php/main/article/view/45