Endoscopic ultrasound-guided fine-needle aspiration of solid pancreatic masses with rapid on-site cytological evaluation by endosonographers without attendance of cytopathologistsTakuto Hikichi, Katsutoshi Obara, Atsushi Irisawa et al.|Journal of Gastroenterology|2009Cited by 132
Conventional versus contrast-enhanced harmonic endoscopic ultrasonography-guided fine-needle aspiration for diagnosis of solid pancreatic lesions: A prospective randomized trialMitsuru Sugimoto, Hiromasa Ohira, Tadayuki Takagi et al.|Pancreatology|2015Cited by 81
Prospective evaluation of the optimal number of 25‐gauge needle passes for endoscopic ultrasound‐guided fine‐needle aspiration biopsy of solid pancreatic lesions in the absence of an onsite cytopathologistRei Suzuki, Hiromasa Ohira, Atsushi Irisawa et al.|Digestive Endoscopy|2012Cited by 57
Hepatocellular Carcinoma Associated with Wilson's DiseaseHaruyo Iwadate, Yukio Sato, Hiromasa Ohira et al.|Internal Medicine|2004Cited by 50
Complete response of anaplastic pancreatic carcinoma to paclitaxel treatment selected by chemosensitivity testingTakeru Wakatsuki, Hiromasa Ohira, Atsushi Irisawa et al.|International Journal of Clinical Oncology|2010Cited by 45