Tahara 1972.

Methods	Random allocation to one of three groups.
Participants	Seriously head injured.
Interventions	Prednisolone 2,680mg over 2 weeks. Prednisolone 160mg on first day, tapering over two weeks, total dose 1,000mg. No steroid.
Outcomes	None reported.
Notes	Trial of 100 participants; author contacted but unable to provide details.
Risk of bias
Bias	Authors' judgement	Support for judgement
Allocation concealment?	Unclear risk	Unclear