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. Author manuscript; available in PMC: 2017 May 22.
Published in final edited form as: Cochrane Database Syst Rev. 2016 Feb 16;2:CD011130. doi: 10.1002/14651858.CD011130.pub2
Database Date of Search Search terms

PubMed 31 July 2015 #1 folic acid[MeSH] OR Folic Acid Deficiency [Mesh] OR folic acid[tw] OR folate[tw] OR vitamin B9[tw] OR B9 vitamin[tw] OR vitamin B-9[tw] OR metafolin[tw] OR levomefolate[tw] OR folvite [tw] OR folacin [tw] OR 5-methyltetrahydrofolate[tw] OR 5-methylTHF[tw] OR 5-MTHF[tw] OR L-5-MTHF[tw]
#2 anaemia, sickle cell[MeSH] OR sickle cell[tw] OR haemoglobin S*[tw] OR HbS disease[tw]
#3 (randomized controlled trial [pt] OR controlled clinical trial [pt] OR randomized [tiab] OR placebo [tiab] OR drug therapy [sh] OR randomly [tiab] OR trial [tiab] OR groups [tiab]) NOT (animals [mh] NOT humans [mh])
#1 AND #2 AND #3
Results: 73