QUANTIFICATION AND IN-HOUSE REFERENCE STANDARD PREPARATION OF TANSHINONE IIA FROM DANSHEN (Salvia miltiorrhiza Bunge) ROOTS COLLECTED IN LAI CHAU, GIA LAI, AND LAM DONG PROVINCES. Vietnam Journal of Agriculture and Environment [Internet]. 2026 Jan. 15 [cited 2026 Jun. 17];(2):40-9. Available from: https://tapchikhoahoc.nnmt.net.vn/index.php/journal/article/view/1116