REACTOME_SEROTONIN_RECEPTORS # https://www.gsea-msigdb.org/gsea/msigdb/human/geneset/REACTOME_SEROTONIN_RECEPTORS HTR1A HTR1B HTR1D HTR1E HTR1F HTR2A HTR2B HTR2C HTR4 HTR5A HTR6 HTR7