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The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.

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The most common childhood diseases include croup, chickenpox, ear infections, flu, pneumonia, ringworm, respiratory syncytial virus, scabies, head lice, and asthma.

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The longest a person has survived after a heart transplant is 24 years.

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Approximately 25% of all reported medication errors result from some kind of name confusion.

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Inotropic therapy does not have a role in the treatment of most heart failure patients. These drugs can make patients feel and function better but usually do not lengthen the predicted length of their lives.

The ovarian and uterine cycles in a human female. The ovarian and uterine cycles in a human female.
Bluehead wrasse males with yellow females of the species. If the blueheaded male is removed from a t Bluehead wrasse males with yellow females of the species. If the blueheaded male is removed from a t
Species evenness and species diversity. Species evenness and species diversity.
The Red-bearded Bee-eater Nyctyornis amictus is a large species of bee-eater found in the Indo-Malay The Red-bearded Bee-eater Nyctyornis amictus is a large species of bee-eater found in the Indo-Malay
The base of the human cranium is more flexed than the base of the chimpanzee cranium. The base of the human cranium is more flexed than the base of the chimpanzee cranium.
The visual areas of the human cerebral cortex. The visual areas of the human cerebral cortex.
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