title: GSM2308421: polyA mRNA RNA-seq from HeLa-S3 (ENCLB555ASI); Homo sapiens; RNA-Seq
library_construction_protocol: extraction method: see document general protocol: https://www.encodeproject.org/documents/8170d791-0e6d-4dc3-a826-850fb4af58bc/@@download/attachment/LID16633.pdf
attributes.tag: GEO Accession
attributes.value: GSM2308421