Systematic Reviews (2014) - Comments
pubmed: 25033713  doi: 10.1186/2046-4053-3-78  issn: 2046-4053 

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Fiona Stewart, Cynthia Fraser, Clare Robertson, Alison Avenell, Daryll Archibald, Flora Douglas, Pat Hoddinott, Edwin Van Teijlingen, Dwayne Boyers