Gastric Cancer Presenting with Extremely Rapid Growth: Unprecedented Morphologic Change in a Short Time and Endoscopic Estimation of its Doubling Time - Nakajima, T.; Konishi, H.; Tatsumi, Y.; Sakamoto, Y.; Yamane, Y.; Misawa, S.; Toyama, S.; Ochiai, T.; Kashima, K.; Konishi, E.; Tsuchihashi, Y. (Endoscopy, 2000)