Once thought to have neurofibromatosis, Joseph Merrick (also known as "the elephant man") is now, in retrospect, thought by clinical experts to have had Proteus syndrome. This endocrine disease causes continued and abnormal growth of the bones, muscles, skin, and so on and can become completely debilitating with severe deformities occurring anywhere on the body.
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Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.
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Medication errors are three times higher among children and infants than with adults.
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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
