Vitamin D supplementation to prevent acute respiratory tract infections: systematic review and meta-analysis of individual participant data.
Davaasambuu Ganmaa, Emma C Goodall, Cameron C Grant, Christopher J Griffiths, Adit A Ginde, Rachel Neale, Geeta Trilok Kumar, Ilkka Laaksi, Gal Dubnov-Raz, Carlos A Camargo, John F Aloia, Peter Bergman, Wim Janssens, Semira Manaseki-Holland, David R Murdoch, Judy R Rees, Mitsuyoshi Urashima, Steve Simpson, David Mauger, Iwona Stelmach, Adrian R Martineau, David A Jolliffe, Richard L Hooper, Lauren Greenberg, Susanna Esposito
BMJ (Clinical research ed.) 2017;356():i6583

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