TY  - RPRT
TI  - [Codeine and dihydrocodeine as substitute and alternative drugs].
AU  - D H Friessem
AU  - K L Täschner
PY  - 1991
DO  - 10.1055/s-2007-1000690
UR  - https://pubmed.ncbi.nlm.nih.gov/1869234/
ID  - 1869234
ER  -