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Bala K, Bosco R, Gramolelli S, Haas DA, Kati S, Pietrek M, Hävemeier A, Yakushko Y, Singh VV, Dittrich-Breiholz O, Kracht M, Schulz TF.Bala K, et al. Among authors: singh vv.PLoS Pathog. 2012 Sep;8(9):e1002927. doi: 10.1371/journal.ppat.1002927. Epub 2012 Sep 27.PLoS Pathog. 2012.PMID: 23028325Free PMC article.