Vitamin D receptor genotype influences risk of upper respiratory infection - Jolliffe, DA; Greiller, CL; Mein, CA; Hoti, M; Bakhsoliani, E; Telcian, AG; Simpson, A; Barnes, NC; Curtin, JA; Custovic, A; Johnston, SL; Griffiths, CJ; et al. (British Journal of Nutrition, 2018)