TY  - RPRT
TI  - Optimization of extraction conditions for active components in Hypericum perforatum using response surface methodology.
AU  - F F Liu
AU  - C Y Ang
AU  - D Springer
PY  - 2000
DO  - 10.1021/jf991086m
UR  - https://pubmed.ncbi.nlm.nih.gov/10956117/
ID  - 10956117
ER  -