Schnaider 2008.

Methods	Randomized controlled trial
Participants	Female patients undergoing total abdominal hysterectomy with adnexectomy under general anaesthesia with epidural block, 20 to 50 years of age, ASA I and II
Interventions	Metoclopramide 20 mg IV or dexamethasone 8 mg IV or droperidol 1.25 mg IV or ondansetron 8 mg IV or dexamethasone 8 mg and ondansetron 4 mg IV or droperidol 1.25 mg and ondansetron 4 mg IV or dexamethasone 8 mg and droperidol 0.625 mg and ondansetron 4 mg IV after venipuncture but before epidural puncture
Outcomes	PONV
Notes	Mail sent on 10th of July 2018; reason for request was missing information about study design; no response received