TY - GEN AU - Radmayr,E TI - [Modification of the decrease in efficiency in the middle period of life. Experiences with piracetam (Nootropil) in professional practice] SN - 0043-5341 PY - 1977///0129 KW - Adult KW - Age Factors KW - Aged KW - Anxiety KW - drug therapy KW - Clinical Trials as Topic KW - Drug Evaluation KW - Efficiency KW - drug effects KW - Euphoria KW - Fatigue KW - Female KW - Humans KW - Male KW - Memory KW - Middle Aged KW - Piracetam KW - pharmacology KW - Pyrrolidinones N1 - Publication Type: Clinical Trial; Journal Article ER -