The Colombian artist honors 20 and 30 years these iconic LPs with a Spotify-exclusive EP, featuring Ed Sheeran and special stories. By Isabela Raygoza Associate Editor, Billboard Español Shakira is ...

NORFOLK, Va. — When most people think of lightning, they picture bright flashes in the sky or the rumble of thunder that follows. But lightning does more than put on a show during storms: it helps ...

A gamma-globulin factor in the serum of patients with systemic lupus erythematosus that reacts with isolated cell nuclei 1 or nucleoprotein 2,3 has been detected in many ways. 4 The standard method of ...

This summary of a Cochrane review presents previous research about the effects of cemented, cementless or hybrid fixation of total knee replacement (arthroplasty) for osteoarthritis and other ...

Among people with sickle cell disease—an inherited blood disorder—acute chest syndrome (ACS) is the leading cause of death. The condition is the result of red blood cells becoming stiff, sticky, and ...

Complement fixation techniques are described for measuring a virus-like antigen associated with viral hepatitis. Antigen was found in the blood of 98 percent of 130 patients, with the serum form of ...

Oral fixation may occur if a person’s needs are not met during a specific stage of childhood development, according to a theory introduced by psychoanalyst Sigmund Freud. Oral fixations include habits ...

A complement blood test checks for autoimmune diseases or other issues with your immune system. Your doctor might test you if you have a family history of certain conditions, such as rheumatoid ...

Vision – To be the world's leading and most trusted provider of information and services that will make a real difference in clinical practice and improve outcomes for patients. Mission – To lead the ...

Nitrogen is essential for all life on Earth. In the global oceans, however, this element is scarce, and nitrogen availability is therefore critical for the growth of marine life. Some bacteria found ...

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