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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.

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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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Women are 50% to 75% more likely than men to experience an adverse drug reaction.

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More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.

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Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

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(a) Graph for converting values to p values. (b) Table of values for selected values of df (a) Graph for converting values to p values. (b) Table of values for selected values of df
Video: Functional zones in a mitochondrion

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