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Ricin poisoning - Mayo Clinic
Castor Oil: Uses and Benefits - WebMD
What Happens If I Eat Castor Beans? | Poison Control
Castor Oil: Benefits, Side Effects, Dosage, and Interactions
Ricin Poisoning: Causes, Symptoms, Next Steps - Healthline
Debunking Myths About Castor Oil - The New York Times
Castor oil health claims: What to know - MD Anderson Cancer …
CDC | Facts About Ricin
Everything you need to know about ricin poison | Popular Science
Ricin - Wikipedia