Kovacs 2007

Methods	Cohort study.
Participants	138 children (78 boys, 60 girls) aged 1‐18 years (mean 7.7) with acute leukaemia and non‐Hodgkin lymphoma.
Interventions	Patients were treated with chemotherapy. Specific details on cancer treatment are not reported.
Outcomes	12.1% had elevated ALT and 3.0% elevated GGT at a follow‐up of 1‐4 years after the end of treatment. 8.2% had elevated ALT and 0.0% elevated GGT at a follow‐up >5 years after the end of treatment.
Notes	This study has not been published in full text (as of February 2010), but has been presented at the SIOP conference 2007 (abstract PL.004). From currently available data it is unclear if this study is eligible for inclusion in this review.