Immunohistochemical Scoring of Notch Signaling Components in the whole cohort of pediatric patients with rhabdomyosarcomas (RMS) and in alveolar (PAX3-FOXO1, n = 10; PAX7-FOXO1, n = 2) and embryonal (n = 20) RMS subtypes. This evidence concerns the gene PAX7 and rhabdomyosarcoma.