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Signs and symptoms of a drug overdose include losing consciousness, fever or sweating, breathing problems, abnormal pulse, and changes in skin color.

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The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.

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Bisphosphonates were first developed in the nineteenth century. They were first investigated for use in disorders of bone metabolism in the 1960s. They are now used clinically for the treatment of osteoporosis, Paget's disease, bone metastasis, multiple myeloma, and other conditions that feature bone fragility.

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To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.

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Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.

Persian leopard (Panthera pardus ciscaucasica), also called Caucasian leopard Persian leopard (Panthera pardus ciscaucasica), also called Caucasian leopard
Common locations of venous thrombosis. (A) The most common sites of deep vein thrombosis. (B) DVT ex Common locations of venous thrombosis. (A) The most common sites of deep vein thrombosis. (B) DVT ex
Varicose Veins Varicose Veins
(C) Locations of the major veins. (C) Locations of the major veins.
Rubella rash in a young child. Rubella is also called 3-day measles or German measles. Rubella rash in a young child. Rubella is also called 3-day measles or German measles.
The nucleus is bounded by a double membrane called the nuclear envelope The nucleus is bounded by a double membrane called the nuclear envelope
Video: Cardiac Cycle (Part 4 of 4)

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