|Ectopic pregnancies account for 2% of all pregnancies. It signifies a major health risk for women of childbearing capacity, which can effect in life-threatening complications if not treated properly. The occurrence of ectopic pregnancies has been progressively diagnosed due to early diagnostic measures like serum beta human chorionic beta hCG and high resolution ultrasound methods. The classic clinical triad of ectopic pregnancy is pain, amenorrhea and vaginal bleeding.
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.