Hornamand 2017.

Methods	RCT, parallel design
Participants	Total number of randomized participants: 105 (number includes participants in an additional group that is not eligible for the review Inclusion criteria: scheduled for surgery with laryngoscopy
Interventions	Labetolol vs normal saline. Study included an additional group (remifentanil), which we will not include in the review
Outcomes	Outcomes reported in the abstract: bradycardia; tachycardia; hypotension; hypertension
Notes	Awaiting translation from Persian to assess full eligibility; number of participants in each group is not reported. We identified another publication by the same author team (Hornamand 2016) and it is possible that these are associated publications of the same study.