Low sperm counts in genitourinary medicine clinic attendees: results from a case–control studyChristopher A Carne, Sian Chilcott, Christopher Palmer, Oliver Green, Simeon Bridge, Richard Walsh, Anna Gramy-Mason, Maria O'Donovan11 June 2012
Genital warts and cost of care in EnglandSarika Desai, Sally Wetten, Sarah C Woodhall, Lindsey Peters, Gwenda Hughes, Kate Soldan3 August 2011