%0 Journal Article %T Using the Web to Collect Data on Sensitive Behaviours: A Study Looking at Mode Effects on the British National Survey of Sexual Attitudes and Lifestyles %A Andrew Copas %A Anne M. Johnson %A Bob Erens %A Frederick Conrad %A Jessica Datta %A Kaye Wellings %A Mick P. Couper %A Philip Prah %A Sarah Burkill %A Soazig Clifton %J Archive of "PLoS ONE". %D 2016 %R 10.1371/journal.pone.0147983 %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4750932/