A web service differs from a web site in that a web service provides information consumable by software rather than humans. As a result, we are usually talking about exposed JSON, XML, or SOAP services. Web services are a key component in mashups.
Neutropenia is an abnormally low number of neutrophils (a type of white blood cell) in the blood. Neutropenia, if severe, significantly increases the risk of life-threatening infection. Neutropenia is often a side effect of the treatment of cancer with chemotherapy or radiation therapy.
Other causes of a low white blood cell count include: 1  Crohn's disease. 2  Infections, such as tuberculosis (TB) or certain viruses like HIV. 3  Lupus (also called systemic lupus erythematosus). 4  Radiation. 5  Rheumatoid arthritis. 6  Some medicines, such as those that treat infections, high blood pressure, or seizures.