The number one magazine is still CA, a cancer journal for clinicians, with an impact factor of 508.7, which exceeded 500 for the first time.
Impact factor (IF)
It is a data in the journal citation report (JCR) of institute for scientific information (ISI) in the United States, which generally refers to the citation frequency of articles in a certain journal in a specific year or period, and is an important indicator to measure the influence of academic journals.
Whether it is the length and type of papers, the differences between disciplines, the sources of journals participating in statistics, etc. The influencing factors will change.
Generally speaking, the influence factor of 3-4 is good, and the influence factor of 7 is quite excellent. Many highly professional doctors only publish 5-6 papers. For ordinary people, the impact factor of a paper can be a few tenths, which is already very high, and few are greater than 1.