Specifications
Organism/cell line/tissue	Homo sapiens
Sex	Neuroblastoma samples (n = 35) were composed by 17 males and 18 females. All reference samples (n = 4) were males.
Sequencer or array type	Infinium Human Methylation 450k BeadChip (Illumina Inc., San Diego, CA). GPL13534
Data format	Raw data is available as TXT non-normalized methylated and non-normalized unmethylated tables.
Experimental factors	Tumor and reference samples.
Experimental features	Normal fetal brain (n = 2) and adrenal gland (n = 2) tissues as well as ganglioneuroma (benign Schwannian stroma dominant neuroblastic tumor) samples (n = 2) were used as reference samples. Tumor cell content was evaluated by a pathologist.
Consent	Patients, parents or guardians signed an informed consent before sample collection.
Sample source location	Hospital Sant Joan de Déu — Barcelona, Passeig Sant Joan de Déu, 2, 08950 Esplugues de Llobregat, Barcelona, Spain. Latitude: 41.383906 | longitude: 2.101771