Hyland PM, Xu J, Shen C, Markson LJ, et al. Race, sex and age disparities in echocardiography among Medicare beneficiaries in
an integrated healthcare system. Heart 2021 Oct 6. pii: heartjnl-2021-319951. doi: 10.1136/heartjnl-2021-319951.
PMID: 34615667