Data from a large study of syphilis indicate a high rate of neurosyphilis in HIV-infected patients with a CD4-cell count less than or equal to 350 or a serum RPR titer greater than or equal to 1:32.

If fluorescent cells are observed, the ANA blood test result is positive. If fluorescent cells are not observed, the ANA blood test result is negative. A titer is determined by repeating the positive ...

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1,337 seconds: that was how long WEST, a tokamak run from the CEA Cadarache site in southern France and one of the EUROfusion consortium medium size Tokamak facilities, was able to maintain a ...

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You'll earn the same rewards and sign-up bonus as on Southwest's pricier cards, but you'll also miss out on a couple of important benefits. This page includes information about the Southwest Rapid ...

Arctic daily sea ice extent continued to hover near record daily lows in January, with the ice edge well northward of its long-term average position in most areas. In contrast to the cold conditions ...

Unlike blood donation, which can often be done every 8 weeks, you can donate plasma more often, up to twice a week. However, different organization may have their own guidelines on how often you can ...

If you're looking for a Skoda Rapid you will definitely want to know all about every aspect of the car – and Parkers has all the spec details you need to know how it will fit into your life. Check out ...