| http://www.w3.org/ns/prov#value | - Some studies used more direct methods, such as face-to-face nutrition education sessions or meetings (Beech et al, 1996; Kitzman-Ulrich et al, 2009), others used indirect methods, such as newsletters or other educational materials sent home (De Bourdeaudhuij, 2002; Hopper et al, 1996; Vandongen et al, 1995; Wind et al, 2008).
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