List of works - Ken-ichi Yamashita

CLINICOPATHOLOGICAL CHARACTERISTICS OF EARLY GASTRIC CANCER DISCOVERED AFTER HELICOBACTER PYLORI ERADICATION IN RELATION TO THE PERIOD AFTER ERADICATION AND HISTOLOGICAL TYPE

scientific article published in 2022

Can surveillance colonoscopy be discontinued in an elderly population with diminutive polyps?

scientific article published on 30 July 2019

Catalyst-free aromatic nucleophilic substitution of meso-bromoporphyrins with azide anion: efficient synthesis and structural analyses of meso-azidoporphyrins

scientific article published on 13 December 2011

Clinical Features and Genomic Characterization of Post-Colonoscopy Colorectal Cancer

scientific article published on 01 October 2020

Clinical impact of surveillance colonoscopy using magnification without diminutive polyp removal.

scientific article published on 28 March 2017

Clinical significance of immunohistochemical lymphovascular evaluation to determine additional surgery after endoscopic submucosal dissection for colorectal T1 carcinoma

scientific article published on 04 November 2020

Clinical usefulness of the S-O clip during colorectal endoscopic submucosal dissection in difficult-to-access submucosal layer

scientific article published on 21 February 2020

Dual Red Imaging Maintains Clear Visibility During Colorectal Endoscopic Submucosal Dissection

scientific article published on 04 October 2018

Facile Redox-Induced Aromatic-Antiaromatic Interconversion of a β-Tetracyano-21,23-Dithiaporphyrin under Ambient Conditions

scientific article published on 03 March 2020

Long-Term Outcomes after Endoscopic Submucosal Dissection for Ulcerative Colitis-Associated Dysplasia

scientific article published on 10 October 2019

Long-term prognosis after treatment for T1 carcinoma of laterally spreading tumors: a multicenter retrospective study

scientific article published on 03 January 2019

Metal-Free Synthesis of meso-Aminoporphyrins through Reduction of meso-Azidoporphyrins Generated in Situ by Nucleophilic Substitution Reactions of meso-Bromoporphyrins

scientific article published on 21 October 2016

Molecular Design and Syntheses of Tetracyano-5,10-porphyrinquinodimethane Showing Stabilized LUMO.

scientific article published on 16 February 2016

Preceding endoscopic submucosal dissection for T1 colorectal carcinoma does not affect the prognosis of patients who underwent additional surgery: a large multicenter propensity score-matched analysis

scientific article published on 18 May 2019

Redox-Driven Symmetry Change for Terbium(III) Bis(porphyrinato) Double-Decker Complexes by the Azimuthal Rotation of the Porphyrin Macrocycles

scientific article published on 09 May 2018

Room-temperature discrete-charge-fluctuation dynamics of a single molecule adsorbed on a carbon nanotube.

scientific article published on 15 June 2017

Short-term outcomes of endoscopic submucosal dissection for superficial cecal tumors: a comparison between extension and nonextension into the appendiceal orifice.

scientific article

Stable Singlet Biradicals of Rare-Earth-Fused Diporphyrin-Triple-Decker Complexes with Low Energy Gaps and Multi-Redox States

scientific article published on 06 February 2019

Superexchange mediated energy transfer in zinc(II) porphyrin-free base porphyrin dimers: comparison of m- and p-bis(phenylethynyl) phenylene linked dimers

scientific article published on 20 June 2011

Systematic Structural Elucidation for the Protonated Form of Rare Earth Bis(porphyrinato) Double-Decker Complexes: Direct Structural Evidence of the Location of the Attached Proton.

scientific article published on 19 August 2016

The utility of a novel colonoscope with retroflexion for colorectal endoscopic submucosal dissection

Ultramacrocyclization through reversible catenation

scientific article published in August 2005

Use of anticoagulants increases risk of bleeding after colorectal endoscopic submucosal dissection.