@misc{indiciae68f8494a2fa3,
  title = {[Modification of the decrease in efficiency in the middle period of life. Experiences with piracetam (Nootropil) in professional practice].},
  author = {E Radmayr},
  year = {1976},
  url = {https://pubmed.ncbi.nlm.nih.gov/793194/},
  note = {Source identifier: 793194}
}