TY  - BOOK
AU  - Negishi,O.
TI  - Methylation of xanthosine by tea-leaf extracts and caffeine biosynthesis
UR  - https://drive.google.com/file/d/1tiMFwIG2WEG2bsEKUrVRxupbfdAY2xV2/view?usp=drivesdk
ER  -