Welcome to Chinese Agricultural Science Bulletin,
Preliminary optimization the extration conditions of triterpene in callus of Betula platyphylla Suk.
范桂枝,詹亚光,李康,翟俏丽
Chinese Agricultural Science Bulletin . 2009, (2): 55 -58 .  DOI: 10.11924/j.issn.1000-6850.2008-1022