Nucleic acid detection sampling precautions, please learn about the collection! Nucleic acid detection sampling precautions, please learn about the collection! Nucleic acid detection sampling precautions, please learn about the collection! Nucleic acid detection sampling precautions, please learn about the collection! Nucleic acid detection sampling precautions, please learn about the collection! Nucleic acid detection sampling precautions, please learn about the collection! Nucleic acid detection sampling precautions, please learn about the collection! Nucleic acid detection sampling precautions, please learn about the collection! Nucleic acid detection sampling precautions, please learn about the collection! Planner: Shen Guobing Draft: Tong Feifei Intern Yu Le Responsible editor Tong Feifei Preliminary trial Sun Jikui Final Judgment Shen Guobing