专利文章名称:Method for preparing [-]-β-hydrastine(1R,9S) and the use of it in enhancing learning and memory process also in
prevention of memory loss and increasing vigilance and concentrating of both humans and animals.
作者Khalifa, Amani E.(Egypt).
期刊:Egypt. (2003), 8 pp.
专利号:EG 22682 A 20030630
Patent written in Arabic.
Application: EG 2000-1521 20001206