Xiong Y, Cao F, Chen L, Yan C, Zhou W, Chen Y, Endo Y, Leng X, Mi B, Liu G. Identification of key microRNAs and target genes for the diagnosis of bone nonunion. Mol Med Rep. 2020 Apr;21(4):1921-33. doi: 10.3892/mmr.2020.10996
Michels KB, Rothman KJ. Update on unethical use of placebos in randomised trials. Bioethics. 2003 Apr;17(2):188-204.