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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.
Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.
The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.