Koji Oba

Advanced search ?

Discover the optimal journal based on multiple criteria or locate authors along with their published articles and the corresponding journals.

Publisher

* You can search a publisher or tap the name directly

Subject Area

* You can search a subject area or tap the name directly

Open Acess

Yes

Quartille

Q1
Q3

Q2
Q4

You can also search
by the journal's Country or the impact indicator H-index.

Countries

* You can search a country or tap the name directly

H-Index

* You can also filter by Journal H-index

16 Publications

Publication								Year
Evaluation of Time-to-event Surrogate Endpoint Endpoint ─Meta-analytic Approach─ Authors : Takeshi Emura , Koji Oba Journal : Japanese Journal of Biometrics Journal Reference count : 61 Volume : 45 Pages : 67-85								2024
Handling of outcome missing data dependent on measured or unmeasured background factors in micro-randomized trial: Simulation and application study Authors : Masahiro Kondo , Koji Oba Journal : DIGITAL HEALTH Journal Reference count : 42 Volume : 10								2024
The net benefit for time-to-event outcome in oncology clinical trials with treatment switching Authors : Musashi Fukuda , Kentaro Sakamaki , Koji Oba Journal : Clinical Trials Journal Reference count : 27 Volume : 20 Pages : 670-680								2023
Bayesian adaptive randomization design incorporating propensity score‐matched historical controls Authors : Ryo Sawamoto , Koji Oba , Yutaka Matsuyama Journal : Pharmaceutical Statistics Journal Reference count : 36 Volume : 21 Pages : 1074-1089								2022
Risk-Stratified Incidence of Renal Replacement Therapy Initiation: A Longitudinal Analysis Using Medical Claims and Health Checkup Data Authors : Takehiro Sugiyama , Koji Oba , Yasuki Kobayashi Journal : The Tohoku Journal of Experimental Medicine Journal Reference count : 25 Volume : 248 Pages : 125-135								2019
Response to: ‘Comment on ‘Sustained discontinuation of infliximab with a raising-dose strategy after obtaining remission in patients with rheumatoid arthritis: the RRRR study, a randomised controlled trial’ by Tanaka et al’ by Berkhout et al Authors : Yoshiya Tanaka , Koji Oba , Tsutomu Takeuchi Journal : Annals of the Rheumatic Diseases Journal Reference count : 4 Volume : 80 Pages : e173-e173								2019
Statistical challenges for central monitoring in clinical trials: a review Authors : Koji Oba Journal : International Journal of Clinical Oncology Journal Reference count : 21 Volume : 21 Pages : 28-37								2015
Geographic difference in advanced gastric cancer prevalence and chemotherapy treatment results: could it really be an independent prognostic factor? Authors : Junichi Sakamoto , Koji Oba Journal : Gastric Cancer Journal Reference count : 12 Volume : 15 Pages : 232-234								2012
Efficacy of adjuvant chemotherapy using tegafur-based regimen for curatively resected gastric cancer: update of a meta-analysis Authors : Koji Oba Journal : International Journal of Clinical Oncology Journal Reference count : 25 Volume : 14 Pages : 85-89								2009
0725 New analytical method in measurement of mixture concentration by atomic luminescence spectrum Authors : Koji KASHIWASE , Shuji OBA , Toshio SHUDO , Hideyuki OGAWA Journal : The proceedings of the JSME annual meeting Volume : 2007.3 Pages : 211-212								2007
Factors associated with compliance and non-compliance by physicians in a large-scale randomized clinical trial Authors : Koji Oba , Satoshi Morita , Mahbubur Rahman , Junichi Sakamoto Journal : Trials Journal Reference count : 13 Volume : 7								2006
2102 Real-time Scheduling for a Semiconductor Manufacturing System using a Neural Network Authors : Toru EGUCHI , Koji WADA , Isao OOOKA , Fuminori OBA Journal : The Proceedings of Manufacturing Systems Division Conference Volume : 2006 Pages : 21-22								2006
Eating behavior and menstrual state for female athletes to keep drive for thinness and restriction of weight Authors : Koji Takenaka , Koichiro Oka , Yukari Oba Journal : Taiikugaku kenkyu (Japan Journal of Physical Education, Health and Sport Sciences) Volume : 44 Pages : 241-258								1999
Two-step selective photoionization of rubidium by using a Ti:sapphire laser Authors : Koji Tamura , Masaki Oba , Takashi Arisawa Journal : Applied Optics Journal Reference count : 14 Volume : 32 Pages : 987								1993
Masseter muscle reflex evoked by electrical stimulation of periodontal tissues in human subjects - Periodontal-masseteric reflex. Authors : Koji OBA Journal : Nihon Shishubyo Gakkai Kaishi (Journal of the Japanese Society of Periodontology) Volume : 30 Pages : 22-32								1988
Authors : Hideo TAMAI , Kenkichi OBA , Koji ITO Journal : Nishi Nihon Hifuka Journal Reference count : 12 Volume : 44 Pages : 595-601								1982

Research Support Chat

Koji oba

16 Publications

Home

Indexing Services

Customer Service

Research Support Chat

Advanced search ?

You can also search by the journal's Country or the impact indicator H-index.

Koji oba

16 Publications

You can also search
by the journal's Country or the impact indicator H-index.