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Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.
More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.
On average, the stomach produces 2 L of hydrochloric acid per day.
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.
More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.