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  • Human brain activation due to voluntary action
  • Activation of CDK2 by cyclin-A, mol. model
  • Oestrus detection: sexually active Freisians
  • Sagradol : active-lubricating-palatable.
  • Bronchus goblet cells,active hyperplasia SEM
  • Bronchus goblet cells,active hyperplasia SEM
  • Bronchus goblet cells,active hyperplasia SEM
  • Sleeping sickness active surveillance: field laboratory
  • Sildenafil, the active ingredient in Viagra
  • Sildenafil, the active ingredient in Viagra