Maurer 1988 Group 4.

Methods	See Maurer 1988
Participants	Subgroup of patients from Maurer 1988: 129 children in clinical group IV (age and sex nm). The exact number of patients randomised to this subgroup is unclear. For further information: see Maurer 1988
Interventions	Chemotherapy without doxorubicin (N = 61) versus chemotherapy including doxorubicin (N = 68). For further information: see Maurer 1988
Outcomes	Overall survival (defined as time from start of treatment to death)
Notes	See Maurer 1988