Authors: Sven Schmiedl; Marietta Rottenkolber; Jacek Szymanski; Werner Siegmund; Marion Hippius; Katrin Farker; Bernd Drewelow; Joerg Hasford; Petra Thürmann Journal: Dtsch Arztebl Int Date: 2013-04-05 Impact factor: 5.594
Authors: Anders Helldén; Ingegerd Odar-Cederlöf; Göran Nilsson; Susanne Sjöviker; Anders Söderström; Mia von Euler; Gunnar Ohlén; Ulf Bergman Journal: BMJ Open Date: 2013-04-11 Impact factor: 2.692