TY  - RPRT
TI  - Morphine and codeine in poppy seed.
AU  - M D Grove
AU  - G F Spencer
AU  - M V Wakeman
AU  - H L Tookey
DO  - 10.1021/jf60206a022
UR  - https://pubmed.ncbi.nlm.nih.gov/956551/
ID  - 956551
ER  -