{"GSE42977": {"is_usable": true, "is_gene_available": true, "is_trait_available": true, "is_available": true, "is_biased": false, "has_age": false, "has_gender": false, "sample_size": 117, "note": "Data was successfully preprocessed from probe-level to gene-level expression using gene symbol normalization with NCBI Gene database."}, "GSE29695": {"is_usable": true, "is_gene_available": true, "is_trait_available": true, "is_available": true, "is_biased": false, "has_age": false, "has_gender": false, "sample_size": 37, "note": "Data was successfully preprocessed from probe-level to gene-level expression using gene symbol normalization with NCBI Gene database."}, "GSE131027": {"is_usable": false, "is_gene_available": true, "is_trait_available": true, "is_available": true, "is_biased": true, "has_age": false, "has_gender": false, "sample_size": 92, "note": "Data was successfully preprocessed from probe-level to gene-level expression using gene symbol normalization with NCBI Gene database."}, "TCGA": {"is_usable": false, "is_gene_available": true, "is_trait_available": true, "is_available": true, "is_biased": true, "has_age": true, "has_gender": true, "sample_size": 122, "note": "Sample size after preprocessing: 122. Number of genes: 19848"}}