7Gian C T, Maria D, Valentina O, et al. Coffee and depression :a short review of literature [ J ]. Cun'ent Pharmaceutical Design, 2015,21 (34) :5034 -5040.
8Prado M R, Blandon L M, Vandenberghe L P S, et al. Milk kefir: composition, microbial cultures, biological activities, and related products [ J ].Frontiers in microbiology, 2015 ( 6 ) : 1177.
9Attila S, Cakir B. Energy- drink consumption in college students and associated factors [ J ] . Nutrition, 2011,27 ( 3 ) : 316 -322.
10Yamaguchi K K, Pereira L F, Lamarao C V, et al. Amazon acai: chemistry and biological activities: a review [ J ]. Food Chemistry ,2015,179 : 137 - 151.