DESIGN: Infants with acute diarrhea were randomly assigned to receive zinc (10 mg/d;n = 538) or placebo (n = 536) for 2 wk.

• 研究设计：急性腹泻的婴儿随机分为补锌组（10毫克/天，538例）和安慰剂组（538例）治疗2周。