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It is difficult to obtain enough calcium without consuming milk or other dairy foods.

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The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).

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All patients with hyperparathyroidism will develop osteoporosis. The parathyroid glands maintain blood calcium within the normal range. All patients with this disease will continue to lose calcium from their bones every day, and there is no way to prevent the development of osteoporosis as a result.

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In 1885, the Lloyd Manufacturing Company of Albany, New York, promoted and sold "Cocaine Toothache Drops" at 15 cents per bottle! In 1914, the Harrison Narcotic Act brought the sale and distribution of this drug under federal control.

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A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.

Body plan of an arthropod, as represented by a grasshopper Body plan of an arthropod, as represented by a grasshopper
Human Body by Children Human Body by Children
The leaky-barrel model: a settling-point model of eating and body weight homeostasis. The leaky-barrel model: a settling-point model of eating and body weight homeostasis.
Dermatomes of body, posterior view Dermatomes of body, posterior view
Find the value exponential and log function Find the value exponential and log function
Structure and function of human teeth. Structure and function of human teeth.
Video: The Hypothalamus: The Body's Thermostat (Human Thermostat)

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