4MALAGUARNERA M, GRECO F, BARONE G, et al. Bifidobacterium longum with fructo-oligosaccharide (FOS) treatment in minimal hepatic encephalopathy: a randomized, double-blind, placebo-controlled study[J]. Digestive Diseases and Sciences, 2007,52(11) :3259-3265.
7SANCHEZ-CUBILLO I, PERIANEZ J A, ADROVER-ROIG D, et al. Construct validity of the Trail Making Test role of task switching, working memory, inhibition/interference con-trol, and visuomotor abilities[J]. Journal of the International Neuro- psychological Society, 2009, 15(3): 438 450.