Andarsio 2000.

Methods	RCT.
Participants	Inclusion criteria: women undergoing ECV attempt. Unit: individual women. N = 35 women included.
Interventions	Intervention:tocolysis: nitroglycerine ‐ nitric oxide donor (A3) ‐ no route reported. Nitroglycerine: only abstract available, no dose or route of administration given. N = 18. Comparison:tocolysis: terbutaline ‐ beta stimulant (A1) ‐ no route reported. Terbutaline: only abstract available, no dose or route of administration given. N = 17.
Outcomes	ECV success.
Notes	Preliminary abstract report only reviewed. This study was included in the previous publication (Cluver 2012), but we cannot include in this update until we have information on the routes of administration used. We are writing to study authors to request this information.