This is an article about gene expression database
This document explains the benefits of using the Gene Expression Omnibus (GEO) database for re-analyzing microarray experiments. It highlights how accessing massive, publicly available datasets allows researchers to overcome limitations in sample size and experimental design, leading to more significant discoveries in the field of OMICS.
The URL is http://www.ncbi.nlm.nih.gov/geo/.
GPL represents a platform, which is a type of microarray.
GSE represents a series, which corresponds to a published article.