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Phytoplankton and zooplankton response to ultraviolet radiation in a high-altitude Andean lake: Short- versus long-term effects
(Oxford University Press, 1997)
A 14-mo zinc-supplementation trial in apparently healthy chilean preschool children
(American Society for Nutrition, 1997)
Human case of gastric infection by a fourth larval stage of Pseudoterranova decipiens (Nematoda, Anisakidae)
(Universidade de Sao Paulo, 1997)