TY  - RPRT
TI  - Codeine impurity in ethylmorphine hydrochloride B.P.C.
AU  - D P Vaughan
AU  - M Dennis
PY  - 1979
DO  - 10.1111/j.2042-7158.1979.tb13432.x
UR  - https://pubmed.ncbi.nlm.nih.gov/32378/
ID  - 32378
ER  -