posted on 2017-08-24, 17:57authored byZisis Dimitriadis, Werner Scholtz, Stephan M. Ensminger, Cornelia Piper, Thomas Bitter, Marcus Wiemer, Marios Vlachojannis, Jochen Börgermann, Lothar Faber, Dieter Horstkotte, Jan Gummert, Smita Scholtz
<p>Variables are expressed as mean ± standard deviation (median) or percentage (number).</p>