The HCHS/SOL data are available under accession numbers dbGaP: phs000880.v1.p1 and phs000810.v1.p1. The TCGA breast cancer data set is publicly available at https://github.com/drjingma/NetGSAreview. The proposed methods are implemented with codes written in the R language, which are available at https://github.com/yuek9/REHE.