TY  - RPRT
TI  - [Current theoretical concepts for developing biologically optimal retard preparation].
AU  - E Békefi
AU  - J Bozzay
AU  - Z Csürös
AU  - A Dávid
AU  - R Soós
PY  - 1975
UR  - https://pubmed.ncbi.nlm.nih.gov/1211177/
ID  - 1211177
ER  -