1. O20.5 Trends in undiagnosed hiv and hiv testing behaviour in community samples of men who have sex with men in london, uk: results from repeat cross-sectional surveys between 2000–2013. (13th September 2015) Authors: Wayal, Sonali; Parsons, V; Copas, A; Danielle, M; Nardone, A; Aghaizu, A; Hart, G; Gilson, R; Johnson, AM Journal: Sexually transmitted infections Issue: Volume 91(2015)Supplement 2 Page Start: A71 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗