![]() ![]() those not cited during the following year. Impact Factor 2.905 SJR Rank 1079 H-index Impact Factor of NEJM Impact Factor (IF) or often called journal impact factor (JIF) is an index provided by an analytics company named Clarivate. Ratio of a journal's items, grouped in three years windows, that have been cited at least once vs. those documents other than research articles, reviews and conference papers. Not every article in a journal is considered primary research and therefore "citable", this chart shows the ratio of a journal's articles including substantial research (research articles, conference papers and reviews) in three year windows vs. Taylor & Francis publishes knowledge and specialty research spanning humanities, social sciences, science and technology, engineering, medicine and. journal self-citations removed) received by a journal's published documents during the three previous years.Įxternal citations are calculated by subtracting the number of self-citations from the total number of citations received by the journal’s documents. Reduced Lung-Cancer Mortality with Low-Dose Computed Tomographic Screening. ![]() Journal Self-citation is defined as the number of citation from a journal citing article to articles published by the same journal.Įvolution of the number of total citation per document and external citation per document (i.e. Effects of diet versus gastric bypass on metabolic function in diabetes. Yoshino M, Kayser BD, Yoshino J, Stein RI, Reeds D, Eagon JC, Eckhouse SR, Watrous JD, Jain M, Knight R, Schechtman K, Patterson BW, Klein S. The two years line is equivalent to journal impact factor ™ (Thomson Reuters) metric.Įvolution of the total number of citations and journal's self-citations received by a journal's published documents during the three previous years. The New England Journal of Medicine (impact factor: 91.245) 2020. The 10-g dose of BNT162b2 led to modest, rapidly waning protection against Covid-19 in children 5 to 11 years old. The chart shows the evolution of the average number of times documents published in a journal in the past two, three and four years have been cited in the current year. Chemaitelly and Others N Engl J Med 2022 387:1865-1876. This indicator counts the number of citations received by documents from a journal and divides them by the total number of documents published in that journal. Q1 (green) comprises the quarter of the journals with the highest values, Q2 (yellow) the second highest values, Q3 (orange) the third highest values and Q4 (red) the lowest values. The set of journals have been ranked according to their SJR and divided into four equal groups, four quartiles. According to the Journal Citation Reports, the journal has a 2021 impact factor of 202.731 ranking it first above The New England Journal of Medicine in the. ![]()
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