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Effects of vitamin A supplementation on intestinal barrier function, growth, total parasitic, and specific Giardia spp infections in Brazilian children: a prospective randomized, double-blind, placebo-controlled trial.
Lima AA, Soares AM, Lima NL, Mota RM, Maciel BL, Kvalsund MP, Barrett LJ, Fitzgerald RP, Blaner WS, Guerrant RL. Lima AA, et al. J Pediatr Gastroenterol Nutr. 2010 Mar;50(3):309-15. doi: 10.1097/MPG.0b013e3181a96489. J Pediatr Gastroenterol Nutr. 2010. PMID: 20038852 Free PMC article. Clinical Trial.