PLoS ONE (2012) - Comment
pubmed: 22912874  doi: 10.1371/journal.pone.0043433  issn: 1932-6203 

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Michaela Lang, Baktybek Kojonazarov, Xia Tian, Anuar Kalymbetov, Norbert Weissmann, Friedrich Grimminger, Axel Kretschmer, Johannes-Peter Stasch, Werner Seeger, Hossein Ardeschir Ghofrani, Ralph Theo Schermuly