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Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.

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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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Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.

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More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.

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Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.

Median Sacral Crest Median Sacral Crest
Apgar Score Apgar Score
Median Annual Earnings of Full-Time Workers, by Gender, 1960–2010 Median Annual Earnings of Full-Time Workers, by Gender, 1960–2010
When the IQ scores of identical twins differ, behavior genetics researchers attribute these to ... When the IQ scores of identical twins differ, behavior genetics researchers attribute these to ...
. In which distribution is the mean more “typical” of all scores? . In which distribution is the mean more “typical” of all scores?
Sample lod score curves Sample lod score curves
Video: Stomach peristalsis & Enterogastric reflex

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