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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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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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Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.
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If you could remove all of your skin, it would weigh up to 5 pounds.
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The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.