Dohn 1968.

Methods	Study design: Randomised by 'drug coding', double blinded, cross‐over trial. Withdrawals post‐randomisation: 2 subjects completed first 12 week period only.
Participants	Country: Denmark. No. of patients: 44 randomised. Age: 5 subjects < 50 years, 34 subjects 50 to 69 years, 5 subjects > 70 years. Gender: male. Inclusion criteria: Intermittent claudication, "43 due to arteriosclerosis, 1 due to Buerger's disease'". Exclusion criteria: None mentioned.
Interventions	Treatment: 300 mg testosterone isobutyrate (orally), once every 24 days. Control: 50 mg meprobromate. Duration: 12 weeks treatment followed by 12 weeks control or vice versa.
Outcomes	Subjective effects, metronome walking test, plethysmography, side effects.
Notes
Risk of bias
Bias	Authors' judgement	Support for judgement
Allocation concealment (selection bias)	Unclear risk	B ‐ Unclear