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.
Leukopenia is a shortage of white blood cells in the system, which can be caused by anemia, menorrhagia, etc. A low white blood cell count, or leukopenia will have a direct effect on your body's immune system. White blood cells are used to fight off infections within the blood stream. Without an adequate number of white blood cells your body will have trouble ridding itself of bacteria or viral matter which can cause disease.
1 Leukopenia-a decrease in the total number of white blood cells (WBC), which may lead to low white blood cell count. 2  Neutropenia-a decrease in the number of neutrophils, one type of white blood cell, which may lead to low white blood cell count.lood cells; red blood cells, white blood cells and platelets are made by the bone marrow. These blood cells divide quickly. Chemotherapy may lead to low blood counts, causing the possibility of a variety of symptoms. The symptoms depend on the type of low blood cell count.