Preterm birth is the condition in which the birth occurs before the actual gestation age.In humans the normal gestation period is 36 weeks but in some cases the birth occurs before this period such condition is specifically known as preterm birth.The preterm birth leads to premature babies. These babies are having many long term and short term complications even including the under developed organ systems and limbs etc. 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 July, 2014