Tolbert 1993.

Methods	Randomized double‐blind placebo controlled, asymmetric cross‐over trial; 10 week treatment blocks
Participants	Treated participants:10 males & 5 females diagnosed using DSM‐III‐R criteria (age range, 6 to 18)
Interventions	1.B6+Mg (20 weeks) then Placebo 10 (weeks) 2.B6+Mg (10 weeks) then Placebo (10 weeks)then B6+Mg (10 weeks) Dosage: B6: 200mg/70kg weight Mg: 100mg/70kg weight
Outcomes	Sensory‐motor; social behaviour; affective behaviour; sensory responses; language
Notes	Reported data not in useable form for analysis; Control group not randomly assigned
Risk of bias
Bias	Authors' judgement	Support for judgement
Allocation concealment?	Unclear risk	B ‐ Unclear