No.	Search Terms
#28	('intravenous drug administration'/exp OR intravenous*:ab,ti OR iv:ab,ti OR 'i v':ab,ti) AND (('rehydration'/de OR 'fluid resuscitation'/de OR 'crystalloid'/exp OR 'isotonic solution'/exp) OR crystalloid OR (fluid*:ab,ti OR hydrat*:ab,ti OR rehydrat*:ab,ti) OR ((ringer* OR isotonic OR salt) NEAR/2 solution*):ab,ti) AND (('postoperative nausea and vomiting'/exp OR 'postoperative complication'/de) OR ponv:ab,ti OR ('post operative':ab,ti OR postoperati*:ab,ti OR perioperative:ab,ti OR 'peri‐operative':ab,ti OR surger*:ab,ti OR surgical*:ab,ti OR postsurg*:ab,ti OR intraoperative:ab,ti OR anesthe*:ab,ti OR anaesthe*:ab,ti OR postanesthe*:ab,ti OR postanaesthe*:ab,ti AND (nause*:ab,ti OR vomit*:ab,ti OR emesis:ab,ti OR emeses:ab,ti OR queasiness:ab,ti OR queasy:ab,ti)) OR (('postoperative period'/exp OR 'perioperative period'/exp OR 'anaesthetic recovery'/exp) AND (nause*:ab,ti OR vomit*:ab,ti OR emesis:ab,ti OR emeses:ab,ti OR queasiness:ab,ti OR queasy:ab,ti))) AND (('clinical trial'/exp OR 'randomised controlled trial'/exp OR 'single blind procedure'/exp OR 'double blind procedure'/exp OR 'crossover procedure'/exp OR 'placebo'/exp OR 'prospective study'/exp) OR random*:ab OR 'randomised controlled trial*':ab,ti OR 'randomised controlled trial*':ab,ti OR rct:ab,ti OR 'single blind*':ab,ti OR 'double blind*':ab,ti OR ((treble OR triple) NEAR/1 blind*):ab,ti OR placebo:ab,ti)
#27	('clinical trial'/exp OR 'randomised controlled trial'/exp OR 'single blind procedure'/exp OR 'double blind procedure'/exp OR 'crossover procedure'/exp OR 'placebo'/exp OR 'prospective study'/exp) OR random*:ab OR 'randomised controlled trial*':ab,ti OR 'randomised controlled trial*':ab,ti OR rct:ab,ti OR 'single blind*':ab,ti OR 'double blind*':ab,ti OR ((treble OR triple) NEAR/1 blind*):ab,ti OR placebo:ab,ti
#26	placebo:ab,ti
#25	((treble OR triple) NEAR/1 blind*):ab,ti
#24	'double blind*':ab,ti
#23	'single blind*':ab,ti
#22	rct:ab,ti
#21	'randomised controlled trial*':ab,ti
#20	'randomised controlled trial*':ab,ti
#19	random*:ab
#18	'clinical trial'/exp OR 'randomised controlled trial'/exp OR 'single blind procedure'/exp OR 'double blind procedure'/exp OR 'crossover procedure'/exp OR 'placebo'/exp OR 'prospective study'/exp
#17	('postoperative nausea and vomiting'/exp OR 'postoperative complication'/de) OR ponv:ab,ti OR ('post operative':ab,ti OR postoperati*:ab,ti OR perioperative:ab,ti OR 'peri‐operative':ab,ti OR surger*:ab,ti OR surgical*:ab,ti OR postsurg*:ab,ti OR intraoperative:ab,ti OR anesthe*:ab,ti OR anaesthe*:ab,ti OR postanesthe*:ab,ti OR postanaesthe*:ab,ti AND (nause*:ab,ti OR vomit*:ab,ti OR emesis:ab,ti OR emeses:ab,ti OR queasiness:ab,ti OR queasy:ab,ti)) OR (('postoperative period'/exp OR 'perioperative period'/exp OR 'anaesthetic recovery'/exp) AND (nause*:ab,ti OR vomit*:ab,ti OR emesis:ab,ti OR emeses:ab,ti OR queasiness:ab,ti OR queasy:ab,ti))
#16	('postoperative period'/exp OR 'perioperative period'/exp OR 'anaesthetic recovery'/exp) AND (nause*:ab,ti OR vomit*:ab,ti OR emesis:ab,ti OR emeses:ab,ti OR queasiness:ab,ti OR queasy:ab,ti)
#15	nause*:ab,ti OR vomit*:ab,ti OR emesis:ab,ti OR emeses:ab,ti OR queasiness:ab,ti OR queasy:ab,ti
#14	'postoperative period'/exp OR 'perioperative period'/exp OR 'anaesthetic recovery'/exp
#13	'post operative':ab,ti OR postoperati*:ab,ti OR perioperative:ab,ti OR 'peri‐operative':ab,ti OR surger*:ab,ti OR surgical*:ab,ti OR postsurg*:ab,ti OR intraoperative:ab,ti OR anesthe*:ab,ti OR anaesthe*:ab,ti OR postanesthe*:ab,ti OR postanaesthe*:ab,ti AND (nause*:ab,ti OR vomit*:ab,ti OR emesis:ab,ti OR emeses:ab,ti OR queasiness:ab,ti OR queasy:ab,ti)
#12	ponv:ab,ti
#11	'postoperative nausea and vomiting'/exp OR 'postoperative complication'/de
#10	('rehydration'/de OR 'fluid resuscitation'/de OR 'crystalloid'/exp OR 'isotonic solution'/exp) OR crystalloid OR (fluid*:ab,ti OR hydrat*:ab,ti OR rehydrat*:ab,ti) OR ((ringer* OR isotonic OR salt) NEAR/2 solution*):ab,ti
#9	'intravenous drug administration'/exp OR intravenous*:ab,ti OR iv:ab,ti OR 'i v':ab,ti
#8	'i v':ab,ti
#7	iv:ab,ti
#6	intravenous*:ab,ti
#5	'intravenous drug administration'/exp
#4	((ringer* OR isotonic OR salt) NEAR/2 solution*):ab,ti
#3	fluid*:ab,ti OR hydrat*:ab,ti OR rehydrat*:ab,ti
#2	crystalloid
#1	'rehydration'/de OR 'fluid resuscitation'/de OR 'crystalloid'/exp OR 'isotonic solution'/exp