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Did you know?

During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).

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Thyroid conditions may make getting pregnant impossible.

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Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.

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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

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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.

Major Areas Tested on the CMA and RMA Examinations Major Areas Tested on the CMA and RMA Examinations
Anterior view of major muscles. Anterior view of major muscles.
Casting numbers on major components can be either cast or stamped. Casting numbers on major components can be either cast or stamped.
Apply effleurage and direct pressure on attachments of pectoralis minor. Lift one arm off the table ... Apply effleurage and direct pressure on attachments of pectoralis minor. Lift one arm off the table ...
Major bone (tan) and cartilage (light blue) elements of the human skeleton. Inset shows regions of v Major bone (tan) and cartilage (light blue) elements of the human skeleton. Inset shows regions of v
Major Causes of Death from Infectious Disease Major Causes of Death from Infectious Disease
Video: Reflex arc construction

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