The effects of continuous prostacyclin infusion on regional blood flow and cerebral vasospasm following subarachnoid haemorrhage: study protocol for a randomised controlled trial

Table 1 Search details

	Search string 1	Search string 2	Combined
PubMed	Subarachnoid haemorrhage (MeSH term)	Epoprostenol (MeSH term)
PubMed	14664	11612	21
Embase	Subarachnoid haemorrhage	Prostacyclin
Embase	25363	26454	88
Cochrane central	Subarachnoid haemorrhage	Prostacyclin
Cochrane central	15	8	0

ISSN: 1745-6215