We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleHow to improve the validity of sexual behaviour reporting: systematic review of questionnaire delivery modes in developing countries.AuthorsLanghaug LF; Sherr L; Cowan FMPublicationTropical medicine & international health : TM & IH, 2010, Vol 15, Issue 3, p362ISSN1365-3156Publication typearticleDOI10.1111/j.1365-3156.2009.02464.x