Transient Neonatal Thrombocytopenia is related to fetal and neonatal alloimmune thrombocytopenia and immunodeficiency 26. An important gene associated with Transient Neonatal Thrombocytopenia is COX20 (Cytochrome C Oxidase Assembly Factor COX20), and among its related pathways/superpathways is Pathways of nucleic acid metabolism and innate immune sensing. Related phenotype is mortality/aging.