TY  - RPRT
TI  - [Methyl-D3]2hypericin as internal standard for quantification in human plasma.
AU  - Georgios Piperopoulos
AU  - Andrea Kiehne
AU  - Arnd Ingendoh
AU  - Klaus-Peter Zeller
PY  - 2003
DO  - 10.1007/s00216-003-1780-x
UR  - https://pubmed.ncbi.nlm.nih.gov/12664172/
ID  - 12664172
ER  -