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  1. Action of serotonin reuptake inhibitors
  2. Serotonin neurotransmitter molecule
  3. Virus particles entering cells, artwork
  4. Human skull
  5. Synapses, artwork
  6. Molecular model
  7. Blood cells in blood vessel, artwork
  8. Retina in glaucoma, artwork
  9. Virus particles, artwork
  10. Coronary artery disease
  11. Viral throat infection, artwork
  12. Detached blood clot, artwork
  13. Dendritic cells, artwork
  14. Cells
  15. Fertilisation, artwork
  16. DNA replication, artwork
  17. Bacterial lung infection
  18. Toothache, conceptual artwork
  19. Rod-shaped bacteria, artwork
  20. Nerve damage and stem cells, artwork