Evidence of serum vitamin D insufficiency but not anemia-related micronutrient deficiencies among primary school children in Kuala Lumpur, Malaysia - Khor, Geok Lin; Chee, Winnie S; Shariff, Zalilah M.; Poh, Bee K; Arumugam, Mohan; Ab Rahman, Jamalludin; Theobald, Hannah E (Karger, Switzerland, 2011)