11.声明:论文没有被出版过,没有被任何杂志社接收,也没有在其他地方被考虑出版,没有一稿多投。(如:Neither the entire study nor any part of it has been published, accepted for publication, or under consideration for publication elsewhere. )。
12.声明:是否有利益冲突。(如:All authors declare no conflict of interest.)。