In vivo tumor imaging using fluorescence conjugated anti‐CEA antibody by two‐photon excitation microscopy. A three‐dimensional image of site inoculated with MKN‐GFP gastric carcinoma cells preincubated with fluorescence conjugated anti‐CEA antibody was obtained by two‐photon excitation microscopy. Issue 10 (October 2014) - Koga, Shigehiro