library_construction_protocol: Nuclei is isolated from these tissues using the protocol suggested for use with the chromium Next GEM Single Cell Multiome ATAC+Gene Expression protocol (CG000338). was performed immediately as per Chromium Next GEM Single Cell Multiome ATAC + Gene Expression User Guide (CG000338). In few instances (few samples from African American and European ancestry), the same protcol was used to generate nuclei but only snRNA-seq was performed.