Tweetations for "The Influence of Two Different Invitation Letters on Chlamydia Testing Participation: Randomized Controlled Trial" Gill ten Hoor, Christian JPA Hoebe, Jan EAM van Bergen, Elfi EHG Brouwers, Robert AC Ruiter, Gerjo Kok J Med Internet Res 2014 (Jan 30); 16(1):e24 All Time (9) In the last month (0) In the last six months (0) In the last year (0) Tweets 1 - 9 of 9. 2014-01-30 16:37:08 2014-01-30 16:48:29 2014-02-07 13:45:27 2014-02-07 19:10:57 2014-02-07 22:05:23 2014-02-07 22:09:57 2014-02-20 10:50:20 2014-02-20 10:52:15 2014-02-24 07:40:16 Tweets 1 - 9 of 9. 1