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Marjo Lehtonen-Veromaa,
Timo Möttönen,
Aila Leino,
Olli J. Heinonen,
Essi Rautava
and Jorma Viikari
(2008).
Prospective study on food fortification with vitamin D among adolescent females in Finland: minor effects. British Journal of Nutrition,
100
,
pp 418-423
doi:10.1017/S0007114508894469