Fig. 3

HER2 signals, CEP17 signals, and HER2/CEP17 ratios derived from FISH analysis of five human gastroesophageal cancer biopsies. FISH signals from 20 tumor cell nuclei were enumerated manually in biopsies, which were analyzed by FISH after the MALDI imaging procedure or without previous MALDI imaging, respectively. The shown examples for FISH are referring to Biopsy 3