Lim H, Eng J, Yates JR, Tollaksen SL, Giometti CS, Holden JF, Adams MWW, Reich CI, Olsen GJ, Hays LG.  2003.  Identification of 2D-gel proteins: a comparison of MALDI/TOF peptide mass mapping to mu LC-ESI tandem mass spectrometry.. J Am Soc Mass Spectrom. 14(9):957-70.