AH	Anaplastic histology
AHWT	Anaplastic histology Wilms tumor
AIEOP	Associazione Italiana Ematologia Oncologia Pediatrica
COG-RTC	Children’s Oncology Group Renal Tumor Committee
CT	Computed tomography
Cy	Cyclophosphamide
DA	Diffuse anaplasia
Dox	Doxorubicin
EFS	Event-free survival
ERN PaedCan	European Reference Network–Paediatric Cancer
ExPO-r-Net	European Expert Paediatric Oncology Reference Network for Diagnostics and Treatment
FA	Focal anaplasia
FHWT	Favorable histology Wilms tumor
GFAOP	French African Pediatric Oncology Group
GPOH	Gesellschaft für pädiatrische Onkologie und Hämatologie
HR	High risk
IMRT	Intensity Modulated RadioTherapy
IR	Intermediate risk
JWiTS	Japan Wilms Tumor Study
LOH	Loss of heterozygosity
LOI	Loss of imprinting
LR	Low risk
miRNAPGs	microRNA processing genes
MIS	Minimally invasive surgery
MVA	Multivariable analysis
N	Number of patients
NA	Not applicable
n.s.	Not significant
NSS	Nephron-sparing surgery
NWTSG	National Wilms Tumor Study Group
OS	Overall survival
PODC	Pediatric Oncology in Developing Countries
Ref	Reference
RFS	Recurrence-free survival
SIOP-RTSG	International Society of Pediatric Oncology Renal Tumor Study Group
UKCCLG	United Kingdom Children’s Cancer and Leukaemia Group
UVA	Univariable analysis
VA	Vincristin, Actinomycin-D
VAD	Vincristin, Actinomycin-D and Doxorubicin
VLRWT	Very low risk Wilms tumor
WAGR	Wilms tumor, aniridia, genitourinary anomalies, and range of developmental delays
WT	Wilms tumor