The Nobel Prize in Physiology or Medicine 1929 was divided equally between Christiaan Eijkman "for his discovery of the antineuritic vitamin" and Sir Frederick Gowland Hopkins "for his discovery of the growth-stimulating vitamins."
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Your chickens are suffering from beriberi! You have one minute to feed them with food containing vitamin B1 to stop them from dying. Can you choose the right food? It is urgent!