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Dangour, Alan D., Albala, Cecilia, Allen, Elizabeth, Grundy, Emily ORCID: 0000-0002-9633-1116, Walker, Damian, Aedo, Cristian, Sanchez, Hugo, Fletcher, Olivia, Elbourne, Diana and Uauy, Ricardo (2011) Effect of a nutrition supplement and physical activity program on pneumonia and walking capacity in Chilean older people: a factorial cluster randomized trial. PLoS Medicine, 8 (4). e1001023. ISSN 1549-1277