Tweetations for "Text Mining and Natural Language Processing Approaches for Automatic Categorization of Lay Requests to Web-Based Expert Forums" Wolfgang Himmel, Ulrich Reincke, Hans Wilhelm Michelmann J Med Internet Res 2009 (Jul 22); 11(3):e25 All Time (2) In the last month (0) In the last six months (0) In the last year (0) Tweets 1 - 2 of 2. 2014-12-03 03:05:52 2014-12-03 04:06:23 Tweets 1 - 2 of 2. 1