Everyone has one nostril that is larger than the other.
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Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.
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Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.
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Medication errors are more common among seriously ill patients than with those with minor conditions.
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Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.
Pathway for vitamin D activation.
Structures of riboflavin and the flavin coenzymes
Structure of vitamin B12
Bacteria in your GI tract synthesize one form of vitamin K
Most Common Vitamin and Mineral Deficiencies among the Malnourished