參考資料
1. 來源: http://www.livestrong.com/article/285367-foods-that-boost-the-immune-system-in-children/
2. 來源: http://www.huffingtonpost.ca/2012/02/06/immune-system-foods_n_1257903.html
3. 來源: http://www.netmums.com/family-food/healthy-eating/boost-your-family-s-immune-system
5. 來源: http://www.sheknows.com/parenting/articles/811772/6-ways-to-boost-kids-immune-system