The corresponding author is the overall responsible person for the topic, responsible for the funding, design, writing of the article, and quality control, and is responsible for communicating with the journal in the submission, peer review, and entire publication process

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There may not necessarily be only one corresponding author for an SCI journal article, and there is no fixed standard on how many. This is because different SCI journals have different policies regarding the number of corresponding authors. For SCI journals that only accept one corresponding author, if the paper lists multiple corresponding authors, the first corresponding author will be automatically selected. For SCI journals that accept two corresponding authors, two corresponding authors can be listed. Other requirements follow similar principles. That is, the number of corresponding authors listed by the authors must comply with the regulations of the target SCI journal. The first author of an SCI paper is the person who has made the most contributions to the experiment and writing of the article, and is the person listed first in the author list. However, in cases of collaboration, it is common to have joint first authors. As for the number of joint first authors, there is no clear regulation, and it greatly depends on the workload, length of the paper, the regulations of the publication, and the recognition by the institution. Generally, having 2-4 first authors for an SCI paper is the most common

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How many corresponding authors/first authors can a journal have?

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What is a corresponding author?

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