When cancer involves plasma cells, the body keeps producing more and more of plasma cells. The unwanted plasma cells of all abnormal and exactly alike are called as myeloma cells. Myeloma cells tend to collect in the bone marrow and in the hard, outer part of the bones. In most cases, the myeloma cells collect in various bones, often forming many tumors. When this happens, the disease is called multiple myeloma.
The impact factor of journal provides quantitative assessment tool for grading, evaluating, sorting and comparing journals of similar kind. It reflects the average number of citations to recent articles published in science and social science journals in a particular year or period, and is frequently used as a proxy for the relative importance of a journal within its field. It is first devised by Eugene Garfield, the founder of the Institute for Scientific Information. The impact factor of a journal is evaluated by dividing the number of current year citations to the source items published in that journal during the previous two years.
Last date updated on September, 2014