. Author manuscript; available in PMC: 2010 Nov 1.
Published in final edited form as: J Am Soc Mass Spectrom. 2009 Aug 7;20(11):2006–2012. doi: 10.1016/j.jasms.2009.07.019
© 2009 The American Society for Mass Spectrometry. Published by Elsevier Inc. All rights reserved.