Regnier de Graaf
Dutch physician (1641-1673) · Netherlands · On the map · Doctors · Died at 32
Regnier de Graaf, original Dutch spelling Reinier de Graaf, or Latinized Reijnerus de Graeff, was a Dutch physician, physiologist and anatomist who made key discoveries in reproductive biology.
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A typical day, 30 days to 12 November 2026
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He specialized in iatrochemistry and iatrogenesis, and was the first to develop a syringe to inject dye into human reproductive organs so that he could understand their structure and function.
