easyDifferentialGeneCoexpression
                        Function that computes the differential
                        coexpression of a list of probesets in a
                        specific dataset and returns the most
                        significant pairs
fromProbesetToGeneSymbol
                        Function that associates a gene symbol to a
                        probeset for some Affymetrix platforms
geoDataDownload         Function that downloads gene expression data
                        from GEO, after checking the connection
geoPlatformAnnotationsDownload
                        Function that downloads the annotations of a
                        GEO platform
probesetRetrieval       Function that reads a CSV file of probesets or
                        gene symbols and, in the latter case, it
                        retrieves the original probesets
