Multicenter Matrix-Assisted Laser Desorption/Ionization Mass Spectrometry Imaging (MALDI MSI) Identifies Proteomic Differences in Breast-Cancer-Associated Stroma - Dekker,TJA; Balluff,BD; Jones,EA; Schoene,CD; Schmitt,M; Aubele,M; Kroep,JR; Smit,VTHBM; Tollenaar,RAEM; Mesker,WE; Walch,A; McDonnell,LA (JOURNAL OF PROTEOME RESEARCH, 2014)