A study in human forensic samples demonstrated that mir-9-2 exhibited considerably higher expression in pooled brain tissue, identifying it as a promising marker for brain identification [Sauer et al. DOI:10.1016/j.fsigen.2017.02.002]. A study in rhesus macaques demonstrated that the mir-9-2 was utilized as a feature in a Day 21 pleural effusion prediction model stratified by gender, which was developed from serum miRNA expression data following whole thorax irradiation [May et al. DOI:10.1038/s41598-022-16316-x].