1007 Morgan 1981.

Methods	SB P
Participants	N 12 Hyp Age 38
Interventions	SR 67 Dur 56
Outcomes	DBP
Notes	LoFo:0
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	Insufficient information
Allocation concealment (selection bias)	Unclear risk	Insufficient information
Blinding (performance bias and detection bias) All outcomes	High risk	Open study
Incomplete outcome data (attrition bias) All outcomes	Low risk	Lost to follow‐up 0
Selective reporting (reporting bias)	High risk	SBP effect not reported
Blinding of participants and personnel (performance bias) All outcomes	High risk	Open study: Performance bias due to knowledge of the allocated interventions by participants and personnel during the study.
Blinding of outcome assessment (detection bias) All outcomes	Low risk	Outcome detection blinded