Authors: K Psarras; N Symeonidis; E T Pavlidis; T E Pavlidis; A Pantzaki; G N Marakis; A K Sakantamis Journal: Tech Coloproctol Date: 2010-11 Impact factor: 3.781
Authors: A Hahnel; N Zitzler; K Schardt; C Gnewuch; T Karrasch; J Schulze; V Peters; M Müller; A Schäffler Journal: Internist (Berl) Date: 2013-10 Impact factor: 0.743