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( Kei Saito ),( Yousuke Nakai ),( Hiroyuki Isayama ),( Ryuichi Yamamoto ),( Kazumichi Kawakubo ),( Yuzo Kodama ),( Akio Katanuma ),( Atsushi Kanno ),( Masahiro Itonaga ),( Kazuhiko Koike ) 대한소화기학회 2021 Gut and Liver Vol.15 No.1
Background/Aims: The aim of this study was to evaluate the safety and efficacy of partially covered self-expandable metallic stents (PCSEMS) in patients undergoing neoadjuvant chemo (radio) therapy (NAC) for pancreatic cancer (PC). Methods: This was a prospective multicenter study to evaluate the safety and efficacy of PC-SEMS in patients receiving NAC for resectable and borderline resectable PC. The primary endpoint was the rate of recurrent biliary obstruction (RBO). Results: Twenty-six patients with PC (three with resectable PC and 23 with borderline resectable PC) who underwent NAC at seven Japanese centers were included in the analysis. Both the technical and functional success rates of PCSEMS placement were 100%. Early stent-related complications were observed in three patients (11.5%): mild pancreatitis (n=2) and mild liver abscess (n=1). The median time to surgery or palliation was 4.0 months. Surgical resection was eventually performed in 73.1% of patients, and stent removal during surgery was successful in all patients. RBO was observed in nine patients (34.6%): seven with stent occlusion, one with kinking and one with migration. The RBO rates in resected cases and nonresected cases were 36.8% and 28.6%, respectively. Conclusions: Biliary drainage by PCSEMS was safe and feasible in patients undergoing NAC for resectable and borderline resectable PC. (Gut Liver 2021;15:135-141)
Analysis of Contract Price in a B2B Automobile Auction
Takashi Namatame,Yumi Asahi,Natsuki Motoyoshi,Yuzo Saito 대한산업공학회 2009 Industrial Engineeering & Management Systems Vol.8 No.4
This study analyzed the structure of pricing in the automobile auction market by using real trade data. We focused on the bidding behavior of bidders and the contract price of exhibits. First, we proposed a relational framework among exhibits, number of bidders, and the contract price. Next, we utilized a neural network model to estimate the number of bidders and the contract price. Subsequently, we investigated the relationship between the number of bidders and the contact price, and evaluated our method through an analysis that employed verifying data. Lastly, we listed our suggestions for bidding in auction markets.
Analysis of Contract Price in a B2B Automobile Auction
Namatame, Takashi,Asahi, Yumi,Motoyoshi, Natsuki,Saito, Yuzo Korean Institute of Industrial Engineers 2009 Industrial Engineeering & Management Systems Vol.8 No.4
This study analyzed the structure of pricing in the automobile auction market by using real trade data. We focused on the bidding behavior of bidders and the contract price of exhibits. First, we proposed a relational framework among exhibits, number of bidders, and the contract price. Next, we utilized a neural network model to estimate the number of bidders and the contract price. Subsequently, we investigated the relationship between the number of bidders and the contact price, and evaluated our method through an analysis that employed verifying data. Lastly, we listed our suggestions for bidding in auction markets.