S. Golder, H. McIntosh, and Y. Loke. BMC medical research methodology, (May 2006)PUBM: Electronic; DEP: 20060508; JID: 100968545; 2005/10/18 received; 2006/05/08 accepted; 2006/05/08 aheadofprint; epublish.
I. Muller, K. Klingel, V. Nikolaev, R. Jahns, M. Gawaz, and H. Weig. Clin Res Cardiol, 97 (10):
787-90(October 2008)Muller, Iris I Klingel, Karin Nikolaev, Viacheslav O Jahns, R Gawaz,
Meinrad P Weig, Hans-Jorg Case Reports Letter Germany Clinical research
in cardiology : official journal of the German Cardiac Society Clin
Res Cardiol. 2008 Oct;97(10):787-90. Epub 2008 Jul 16..