Risk factors for herpes simplex virus type-1 infection and reactivation: Cross-sectional studies among EPIC-Norfolk participants. Forbes H, Warne B, Doelken L, Brenner N, Waterboer T, Luben R, Wareham NJ, Warren-Gash C, Gkrania-Klotsas E PLoS ONE. Jan 2019 (DOI : 10.1371/journal.pone.0215553)