The other 48 articles (Table 2) focused on specific ID‐related disorders, in which xeroderma pigmentosum (XP) was the most common (n = 12), followed by DS (n = 11), NF1 (n = 8), Fanconi anemia (FA) (n = 4), Fragile X syndrome (FXS) (n = 2), and Nijmegen breakage syndrome (NBS) (n = 2). This evidence concerns the gene NF1 and fragile X syndrome.