In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.
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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
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Blood is approximately twice as thick as water because of the cells and other components found in it.
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The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.
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After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
Structure of a typical animal cell
The structure of the lacrimal apparatus.
Diversity within the family structure.
Common structure of nucleotides
A model for the RuvA-RuvB-Holliday junction structure