%0 Journal Article %J European journal of public health %D 2011 %T Assessing non-response to a mailed health survey including self-collection of biological material. %A Uusküla, Anneli %A Kals, Mart %A McNutt, Louise-Anne %K Adolescent %K Adult %K Chlamydia Infections %K Chlamydia trachomatis %K Estonia %K Female %K Health Surveys %K Humans %K Male %K Mass Screening %K Postal Service %K Refusal to Participate %K Specimen Handling %K Young Adult %N 4 %P 538-42 %V 21 %X Collection of biological material via mailed health surveys is an emerging trend. This study was conducted to assess non-response bias in a study of sexually transmitted infection utilizing self-collected, home-obtained specimens. %8 2011 Aug