Mahmoudi 2011.

Methods	Study design: sham‐controlled cross‐over randomised trial Dropouts: not stated, most likely none Adverse effects: none Deaths: not stated, most likely none ITT: not stated
Participants	Country: Iran Number of participants: 10 right‐handed stroke participants with no sensory deficits Age: (mean ± SD) 60.8 ± 14.1 years Gender: 3 female (30%) Type of stroke: ischaemic Time poststroke: (mean ± SD) 8.3 ± 5.45, range 1 to 16 months Severity: median Brunnstrom stage 6 Inclusion criteria: single ischaemic stroke with more than 1 month's duration of mild to moderate motor deficit (to ensure that all participants could perform all items on the JTT Exclusion criteria: clinically significant or unstable medical or psychiatric disorder with history of substance abuse, any neuropsychiatric comorbidity other than stroke and contraindications to tDCS
Interventions	Each participant underwent 5 different treatments with at least 4 days of each of the following A‐tDCS of lesioned M1 (with the cathodal electrode positioned at the contralateral supraorbital area, 1 mA for 20 minutes) A‐tDCS of lesioned M1 (with the cathodal electrode positioned at the contralateral deltoid muscle, 1 mA for 20 minutes) C‐tDCS of lesioned M1 (with the anodal electrode positioned at the contralateral supraorbital area, 1 mA for 20 minutes) Dual‐tDCS: A‐tDCS of lesioned M1 + C‐tDCS of non‐lesioned M1 Sham tDCS (20 minutes)
Outcomes	Outcomes used: JTT (with familiarisation sessions) Time points of measurement: at baseline and after stimulation
Notes
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	Quote: "The order of these conditions was counterbalanced and randomised across patients"
Allocation concealment (selection bias)	Unclear risk	Not described
Blinding of participants and personnel (performance bias) Subjective outcome measures	Low risk	There were no subjective outcome measures
Blinding of participants and personnel (performance bias) Objective outcome measures	Low risk	Participants probably were blinded; blinding of personnel was not described. Quote: "Patients were then randomised to the double‐blinded, sham‐controlled cross over part of the experiment"
Blinding of outcome assessment (detection bias) Subjective outcome measures	Low risk	There were no subjective outcome measures
Blinding of outcome assessment (detection bias) Objective outcome measures	Low risk	Quote: "A blinded physiatrist—instructed not to communicate with the patients during the task—evaluated patients' performance"
Incomplete outcome data (attrition bias) Subjective outcome measures	Low risk	There were no subjective outcome measures
Incomplete outcome data (attrition bias) Objective outcome measures	Unclear risk	All participants apparently completed the study. No treatment withdrawals, no losses to follow‐up, no trial group changes and no major adverse events were stated
Selective reporting (reporting bias)	Unclear risk	All outcomes stated in the methods section were reported