ALK	Anaplastic lymphoma kinase
BM	Bone marrow
COJEC	Rapid COJEC chemotherapy
CR	Complete response
CR1	Complete remission
Curie	Modified Curie score
Cyclo	Cyclophosphamide
Doxo	Doxorubicin
Dx	At diagnosis
EFS	Event-free survival
EOI	At end-of-induction
F	Female
FU	Follow-up
LN	Lymph node
M	Male
MIBG	Metaiodobenzylguanidine
MR	Minor response
MYCN	MYCN proto-oncogene
N7	Modified N7 chemotherapy
NA	Not available
Neg	Negative
N	Number of patients
OS	Overall survival
PD	Progressive disease
Pos	Positive
PR	Partial response
SD	Stable disease
Topo	Topotecan