When writing references in your manuscript, in the expression “et al.“, “et” means “and” in Latin, it is not an abbreviation, and thus, is not followed by a period, whereas “al” is the abbreviation of the Latin word “alia” meaning “friends” and should be followed by a period.
Impact Factor
Impact factor is a numerical value calculated by using the number of articles published in a journal in the previous two years and the number of citations these articles received. High impact value is a clue that shows articles in that journal receive high number of citations. Therefore, in time impact factor became an indicator showing the prestige of a journal. To learn more about the impact factor see Part 1: Basics of Medical Writing.
Do not forget
Copy-paste of any material from another source without giving reference-even if this is a previous publication of yours-is not ethical and is considered as plagiarism.
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