在文章的材料与方法处，标注：
"The cell line was obtained from the Cell Resource Center, Peking Union Medical College (which is the
headquarters of National Infrastructure of Cell Line Resource, NSTI）on Sept.xx,201x.
The cell line was checked free of mycoplasma contamination by PCR and culture. Its species origin was confirmed
with PCR. The identity of the cell line was authenticated with STR profiling (FBI, CODIS). All the results can be