Tetsuo Hayakawa

Preoperative staging of superficial esophageal carcinoma: comparison of an ultrasound probe and standard endoscopic ultrasonography

Nakaba Hasegawa, Y. Niwa, Tomiyasu Arisawa et al. · Gastrointestinal Endoscopy · 1996 · 165 citations

Esophagus, Health Sciences, Medical Imaging +9

Effect of GB Virus C/Hepatitis G Virus Coinfection on the Course of HIV Infection in Hemophilia Patients in Japan

Hidenori Toyoda, Yoshihide Fukuda, Tetsuo Hayakawa et al. · Journal of Acquired Immune Deficiency Syndromes & Human Retrovirology · 1998 · 106 citations

Effect of immunosuppression on composition of quasispecies population of hepatitis C virus in patients with chronic hepatitis C coinfected with human immunodeficiency virus

Hidenori Toyoda, H. Fukuda, Yasuo Koyama et al. · Journal of Hepatology · 1997 · 70 citations

Hepatitis C, Hepatitis C Virus, Viral Hepatitis +8

Usefulness of contrast-enhanced EUS in the diagnosis of upper GI tract diseases

Naoto Nomura, Hidemi Goto, Y. Niwa et al. · Gastrointestinal Endoscopy · 1999 · 44 citations

Medical Imaging, Medicine, Abdominal Imaging +9

Evaluation of upper gastrointestinal tumors with a new endoscopic ultrasound probe

Shinya Maruta, Yoshihisa Tsukamoto, Y. Niwa et al. · Gastrointestinal Endoscopy · 1994 · 40 citations

Upper Gastrointestinal Tumors, Medicine, Interventional Endoscopic Ultrasound +9