title: Comparison of therapeutic response to long-term treatment with lecithin versus piracetam plus lecithin in patients with Alzheimer's disease.
mesh_terms: D000368:Aged; D000544:Alzheimer Disease / Q000188:drug therapy*; D004311:Double-Blind Method; D004359:Drug Therapy, Combination; D006801:Humans; D008134:Long-Term Care; D008875:Middle Aged; D010713:Phosphatidylcholines / Q000627:therapeutic use*; D010889:Piracetam / Q000627:therapeutic use*; D011760:Pyrrolidinones / Q000627:therapeutic use*
chemical_list: D010713:Phosphatidylcholines; D011760:Pyrrolidinones; D010889:Piracetam