International neuroblastoma pathology classification: Unfavorable histology group, patient less than 1.5 years old, with poorly differentiated or differentiating neuroblastoma (Schwannian stroma-poor) and high mitosis-karyorrhexis index
international neuroblastoma pathology classification: unfavorable histology group, patient less than 1.5 years old, with poorly differentiated or differentiating neuroblastoma (schwannian stroma-poor) and high mitosis-karyorrhexis index
International neuroblastoma pathology classification: Unfavorable histology group, patient less than 1.5 years old, with poorly differentiated or differentiating neuroblastoma (Schwannian stroma-poor) and high mitosis-karyorrhexis index
international neuroblastoma pathology classification: unfavorable histology group, patient less than 1.5 years old, with poorly differentiated or differentiating neuroblastoma (schwannian stroma-poor) and high mitosis-karyorrhexis index