Table 1.

Medline electronic search strategy

Step	Search Medline 1	Search Medline 2	Search Medline 3
1	"Infant Formula"[MeSH]a OR "Milk"[MeSH]	"economics"[MeSH]	nutrition disorders[MeSH]
2	fortif*[TIAB]b	"micronutrients"[MeSH]	child* OR infant* OR toddl*[TIAB]
3	1 AND 2	"Nutrition Disorders"[MeSH]	"cost*"[TIAB] OR "economics"[MeSH]
4	"Cereals"[MeSH]	1 AND 2 AND3	1 AND 2 AND 3
5	fortif*[TIAB]	"cost*"[TIAB]	"india*"[TIAB] OR "pakistan*"[TIAB] OR "philippine*"[TIAB] OR "asia*"[TIAB] OR "africa*"[TIAB]
6	4 AND 5	"micronutrients"[MeSH]	4 AND 5
7	3 OR 6	"nutrition disorders"[MeSH]
8	child*[TIAB] OR infant*[TIAB] OR toddler*[TIAB]	5 AND 6 AND 7
9	7 AND 8	4 OR 8

Three Medline searches were performed and retrieved references were cumulated. As this review was part of a larger project that evaluates the economic effects of micronutrient fortification as well, we included also search terms such as “cost” and “economics”.

^a MeSH: Medical Subject Heading.

^bTIAB: Title/Abstract.