Search set	CIDG SRa	CENTRAL	MEDLINEb	Embaseb	LILACSb	BIOSIS
1	rotavirus	rotavirus	rotavirus	rotavirus	rotavirus	rotavirus
2	diarrhoea	diarrhoea	ROTAVIRUS INFECTIONS	ROTAVIRUS	diarrhoea	diarrhoea
3	diarrhoea	diarrhoea	1 or 2	1 or 2	diarrhea	diarrhoea
4	gastroenteritis	gastroenteritis	diarrhoea	diarrhoea	gastroenteritis	gastroenteritis
5	2 or 3 or 4	2 or 3 or 4	gastroenteritis	gastroenteritis	2 or 3 or 4	2 or 3 or 4
6	1 and 5	1 and 5	4 or 5	4 or 5	1 and 5	1 and 5