Search set	CIDG SRa	CENTRAL	MEDLINEb	EMBASEb	LILACSb
1	malaria	malaria	malaria	malaria	malaria
2	sickle cell disease	sickle cell disease	sickle cell disease	sickle cell disease	sickle cell disease
3	sickle cell anaemia	ANEMIA, SICKLE CELL	ANEMIA, SICKLE CELL	SICKLE‐CELL‐ANEMIA	sickle cell anaemia
4	2 or 3	haemoglobin SC	haemoglobin SC	HEMOGLOBINOPATHY	2 or 3
5	1 and 4	haemoglobin SS	haemoglobin SS	haemoglobin SC	1 and 4
6	—	haemoglobin SD	haemoglobin SD	haemoglobin SS	—
7	—	thalassaemia	thalassaemia	haemoglobin SD	—
8	—	drepanocyt*	drepanocyt*	thalassaemia	—
9	—	meniscocytosis	meniscocytosis	drepanocyt$	—
10	—	2‐9/or	2‐9/or	2‐9/or	—
11	—	1 and 10	1 and 10	1 and 10	—