The differences, or bias, between estimates of blood oxygen saturation levels as measured with pulse oximeters compared to the gold-standard method ...

I ordered blue, it's lovely and easy to use, haven't had any problems with the keys being round like I thought I would. The ...

PHILADELPHIA (WPVI) -- We're tracking a wide range in temperatures Sunday with plenty of clouds and a few evening showers for some. TONIGHT: Clouds take over with a stray shower possible.

Eph receptors and their membrane-bound ephrin ligands are expressed in complementary segments of the hindbrain. Signalling between these receptors and ligands is sufficient to establish a sharp ...