In situ analysis of FGFR2 mRNA and comparison with FGFR2 gene copy number by dual-color in situ hybridization in a large cohort of gastric cancer patients.

"Conflict of interest Yasutoshi Kuboki, Akiko Nagatsuma, and Atsushi Ochiai have received research grants from Bayer AG. Christoph A. Schatz, Karl Koechert, Sabine Schubert, Sabine Wittemer-Rump, Karl Ziegelbauer, and Thomas Krahn are full-time employees of Bayer AG. Janine Feng is a full-time employee of Ventana Medical Systems, Inc."

"Compliance with ethical standards: Ethical statementAll procedures followed were in accordance with the ethical standards of the responsible committee on human experimentation (institutional and national) and with the Helsinki Declaration of 1964 and later versions.: Informed consentInformed consent or a substitute for it was obtained from all patients for being included in the study.: Conflict of interestYasutoshi Kuboki, Akiko Nagatsuma, and Atsushi Ochiai have received research grants from Bayer AG. Christoph A. Schatz, Karl Koechert, Sabine Schubert, Sabine Wittemer-Rump, Karl Ziegelbauer, and Thomas Krahn are full-time employees of Bayer AG. Janine Feng is a full-time employee of Ventana Medical Systems, Inc."