Male infertility is multifaceted and more than one factor may contribute to the etiology. One of the most common features of idiopathic male infertility is testicular malfunction. Normal spermatogenesis is a result of normal testicular anatomy, histology, physiology and proper hormonal regulation through the pituitary gonadal axis. Disturbances in any of these features may lead to testicular malfunction and abnormal semen parameters.
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