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.
A low white blood cell count can be caused by a range of different conditions, from diseases to bone marrow failure, according to the National Institutes of Health. It can also be caused by a vitamin deficiency, though not generally as a result of a B-12 deficiency.