A study in Wistar rats demonstrated that the miR-99b-5p did not show significant changes in whole blood between controls and irradiated animals at two weeks after 15 Gy whole thorax irradiation, with RT-qPCR results matching sequencing findings [Gao et al. DOI:10.1038/srep44132]. In human pericardial fluid, the miR-99b-5p was identified with 100% coverage in samples from coronary patients, having been previously reported as specific to this biofluid [Silva et al. DOI:10.3390/ijms25158329].