By: Jonathan Ross, Claire Dewsnap, Sara Day, David Crundwell, Jo Gibbs, Vanessa Apea, Hamish Mohammed, Alison Howarth, Louise Jackson, Andrew Winter, Geoff Wong, Catherine H Mercer, Jessica Sheringham, Ann Sullivan, Andrew Copas, Fiona M Burns
Abstract Background: Online postal self-sampling (OPSS) allows service users to screen for sexually transmitted infections (STIs) by ordering




