Habibian 2014.

Methods	Randomised clinical study
Participants	30 people with thalassaemia major Age: not mentioned Gender: not mentioned Setting: Bahonar hospital of Karaj Country: Iran Inclusion criteria: not mentioned Exclusion criteria: not mentioned Follow‐up: 1 year
Interventions	2 groups: DFX DFO
Outcomes	Serum ferritin
Notes	The study was only reported in a conference abstract
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	"In this randomized clinical trial [...]" Not mentioned how random sequence generation was generated.
Allocation concealment (selection bias)	Unclear risk	No details given with regard to concealment of allocation.
Blinding (performance bias and detection bias) All outcomes	High risk	No details given with regard to blinding.
Incomplete outcome data (attrition bias) All outcomes	Unclear risk	Not reported how many patients reached end of study.
Selective reporting (reporting bias)	High risk	No results were reported.
Other bias	Unclear risk	No baseline characteristics were reported.