Infertility is definite as 1 year of exposed intercourse without conception. It affects about 14% of couples and is a medical worry for 2.7 million women of reproductive age in the United States. Infertility reasons great distress to many couples, causing growing numbers of them to seek expert fertility care. There are many causes of infertility including male and female factors.
High-impact journals are those considered to be highly influential in their respective fields. 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