Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.
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It is difficult to obtain enough calcium without consuming milk or other dairy foods.
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Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.
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Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.
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Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.
Leaf structure and its relationship to the C4 cycle
Salt marsh channels shown in cross section.
The human eye, a product of 600 million years of evolution (Lamb, Collin, & Pugh, 2007).
Structure of Salmonella typhimurium glutamine synthetase
Structure of the EcoRI nuclease complexed with its DNA substrate
How to find the reaction for each of the beams below.