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Modifying effect of child age on the responses to therapeutic zinc supplementation for diarrhea, daily preventive zinc supplementation, daily MNP and placebo on diarrhea incidence and duration among young Laotian children. TZ – therapeutic zinc, PZ – preventive zinc, MNP – micronutrient powder. All values adjusted for age, sex, and district. Values with different superscripts are significantly different (P < 0.01).
