. Author manuscript; available in PMC: 2013 Dec 1.
Published in final edited form as: Int J Antimicrob Agents. 2012 Oct 15;40(6):544–548. doi: 10.1016/j.ijantimicag.2012.07.021
© 2012 Elsevier B.V. and the International Society of Chemotherapy. All rights reserved.