1. 1 can be submitted by mail or online. You can scan the letter of introduction fund certificate or approval or take photos with a digital camera and send them to the editorial department by email. When sending pictures by e-mail, please send files in TIF, JPG or BMP format, and don't paste them in word documents.

1.2 The letter of introduction of the company includes: ① The content of the paper is true, the responsibility is borne by itself, the data is accurate, and there is no disclosure; (2) read the references in person, check them correctly, and provide abstracts for checking; (3) Agree to the editorial department to modify the text; ④ Clinical research must follow the principles of Helsinki Declaration, and any research involving human body should be marked with the informed consent of the subjects (or patients); ⑤ Make sure that there are no two votes for one draft.

1.3 manuscript processing and submission will mean that the author will transfer the right of publication and network data dissemination to the editorial department of this journal. The editorial department has the right to make necessary changes to the manuscript and notify the author of the manuscript that will not be used within 3 months. The manuscript is archived and the author keeps his own manuscript. If the manuscript is returned for revision, it means that it has been initially accepted. Please don't send it to other journals. After the publication of the paper, at least 2 periodicals of the month will be presented.