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Prevalent among U.S. Southerners during the early 1900s, pellagra was first thought to be an infectious disease. Today we know that it is caused by a deficiency of _____
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Prevalent among U.S. Southerners during the early 1900s, pellagra was first thought to be an infectious disease. Today we know that it is caused by a deficiency of _____

User Matthys Du Toit
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1 vote

Answer:

iron i think

Step-by-step explanation:

Sometimes when your iron gets low you you devolp a sickness

User Rob Flaherty
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