The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).
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Thyroid conditions may make getting pregnant impossible.
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More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.
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The types of cancer that alpha interferons are used to treat include hairy cell leukemia, melanoma, follicular non-Hodgkin's lymphoma, and AIDS-related Kaposi's sarcoma.
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After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.
Hertzsprung-Russell diagram for a set of stars that includes the Sun
Pap smear. Cells of the cervix (shown in the center) change in appearance as they progress through