Inhibition of Diacylglycerol Acyltransferase by Betulinic Acid from Alnus hirsuta - Chung, Mi Yeon; Rho, Mun-Chual; Lee, Seung Woong; Park, Hye Ran; Kim, Koanhoi; Lee, In Ah; Kim, Dong Hyun; Jeune, Kyung Hee; Lee, Hyun Sun; Kim, Young Kook (Planta Medica, 2006)