SNIP measures contextual citation impact by weighting citations based on the total number of citations in a subject field.
SJR is a prestige metric based on the idea that not all citations are the same. SJR uses a similar algorithm as the Google page rank; it provides a quantitative and a qualitative measure of the journal’s impact.
The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years.
© Thomson Reuters Journal Citation Reports 2015
To calculate the five year Impact Factor, citations are counted in 2014 to the previous five years and divided by the source items published in the previous five years.
© Journal Citation Reports 2015, Published by Thomson Reuters
Seminars in Hematology aims to present subjects of current importance in clinical hematology, including related areas of oncology, hematopathology, and blood banking. The journal's unique issue structure allows for a multi-faceted overview of a single topic via a curated selection of review articles, while also offering a variety of articles that present dynamic and front-line material immediately influencing the field. Seminars in Hematology is devoted to making the important and current work accessible, comprehensible, and valuable to the practicing physician, young investigator, clinical practitioners, and internists/paediatricians with strong interests in blood diseases. Seminars in Hematology publishes original research, reviews, short communications and mini- reviews.