消化器・小児外科学        
Gastroenterological and Pediatric Surgery      
コード 45
   
整理番号 論文の種類 著者名 タイトル・題名 雑誌名、書名 巻、ページ 発行年 DOI
2045001 原著 Hidaka M, Eguchi S, Okuda K, Beppu T, Shirabe K, Kondo K, Takami Y, Ohta M, Shiraishi M, Ueno S, Nanashima A, Noritomi T, Kitahara K, Fujioka H Impact of Anatomical Resection for Hepatocellular Carcinoma With Microportal Invasion (vp1): A Multi-institutional Study by the Kyushu Study Group of Liver Surgery. Ann Surg 271(2):339-346. 2020 10.1097/SLA.0000000000002981
2045002 原著 上田貴威、増田崇、猪股雅史、白石憲男、
大分県外科医会
大分県外科勤務医の『やりがい』の要因の変化―2010年度アンケート調査結果との比較 日本外科学会雑誌 1211:83-89. 2020  
2045003 原著 増田崇、上田貴威、平下禎二郎、猪股雅史、
白石憲男
外科勤務医が医師不足を自覚する関連因子 日本臨床外科学会雑誌 811:7-13. 2020  
2045004 原著 Ohtsuka T, Nagakawa Y, Toyama H, Takeda Y, Maeda A, Kumamoto Y, Nakamura Y, Hashida K, Honda G, Fukuzawa K, Toyoda E, Tanabe M, Gotohda N, Matsumoto I, Ryu T, Uyama I, Kojima T, Unno M, Ichikawa D, Inoue Y, Matsukawa H, Sudo T, Takaori K,
Yamaue H, Eguchi S, Tahara M,
Shinzeki M, Eguchi H, Kurata M,
Morimoto M, Hayashi H, Marubashi S, Inomata M, Kimura K, Amaya K, Sho M, Yoshida R, Murata A, Yoshitomi H, Hakamada K, Yasunaga M, Abe N,
Hioki M, Tsuchiya M, Misawa T,
Seyama Y, Noshiro H, Sakamoto E, Hasegawa K, Kawabata Y, Uchida Y, Kameyama S, Ko S, Takao T, Kitahara K, Nakahira S, Baba H, Watanabe M, Yamamoto M, Nakamura M.
A multicenter prospective registration study on laparoscopic pancreatectomy in Japan: report on the assessment of 1,429 patients J Hepatobiliary Pancreat Sci 27(2):47-55. 2020 10.1002/jhbp.695
2045005 原著 Itabashi M, Yamamoto H, Tomita N, Inomata M, Murata K, Hayashi S,
Miyake Y, Igarashi S, Kato T, Noura S, Furuhata T, Ozawa H, Takemasa I,
Yasui M, Takeyama H, Okamura S,
Ohno Y, Matsuura N.
Lymph Node Positivity in One-Step Nucleic Acid Amplification is a Prognostic Factor for Postoperative Cancer Recurrence in Patients with Stage II Colorectal Cancer: A Prospective, Multicenter Study. Ann Surg Oncol 27(4):1077-1083. 2020 10.1245/s10434-019-07971-y
2045006 原著 Tada K, Iwashita Y, Shiraiwa K, Uchida H, Oshima Y, Sato Y, Nakanuma H, Hirashita T, Masuda T, Endo Y, Takeuchi Y, Ohta M, Itoh H, Inomata M. Pharmacokinetic and toxicodynamic evaluation of 5-fluorouracil administration after major hepatectomy in a rat model Cancer Chemother Pharmacol
85(2):345-352. 2020 10.1007/s00280-019-03969-1
2045007 原著 Inomata M, Shiroshita H, Uchida H, Bandoh T, Akira S, Yamaguchi S, Kurokawa Y, Seki Y, Eguchi S, Wada N, Takiguchi S, Ieiri S, Endo S, Iwazaki N, Sato Y, Tamaki Y, Kitamura K, Tabata M, Kanayama H, Mimata H, Hasegawa T, Takahashi H, Onishi K, Uemura T, Hashizume M, Matsumoto S, Kitano S, Watanabe M Current status of endoscopic surgery in Japan: The 14th National Survey of Endoscopic Surgery by the Japan Society for Endoscopic Surgery Asian J Endosc Surg 13(1):7-18. 2020 10.1111/ases.12768
2045008 原著 Hirano N, Nishikawa K, Hiratsuka T, Suenobu S, Ihara K Gastric carcinoma as the second malignant neoplasm in a survivor of high-risk neuroblastoma. J Pediatr Hematol Oncol 42(2):160-162. 2020 10.1097/MPH.0000000000001409
2045009 原著 Ouchi A, Shida D, Hamaguchi T, Takashima A, Ito Y, Ueno H, Ishiguro M, Takii Y, Ikeda S, Ohue M, Fujita S, Shiozawa M, Kataoka K, Ito M, Tsukada Y, Akagi T, Inomata M, Shimada Y, Kanemitsu Y. Challenges of Improving Treatment Outcomes for Colorectal and Anal Cancers in Japan: The Colorectal Cancer Study Group (CCSG) of the Japan Clinical Oncology Group (JCOG) Jpn J Clin Oncol 50(4):368-378. 2020 10.1093/jjco/hyaa014
2045010 原著 Hara T, Hiratsuka T, Etoh T, Itai Y,
Kono Y, Shiroshita H, Shiraishi N,
Inomata M.
Intraperitoneal phototherapy suppresses inflammatory reactions in a surgical model of peritonitis J Surg Res 252:231-239. 2020 10.1016/j.jss.2020.03.020
2045011 原著 Tada K, Ohta M, Hidano S, Watanabe K, Hirashita T, Oshima Y, Nakanuma H, Masuda T, Endo Y, Takeuchi Y, Iwashita Y, Kobayashi T, Inomata M. Fucosyltransferase 8 plays a crucial role in the invasion and metastasis of pancreatic ductal adenocarcinoma Surg Today 50(7):767-777. 2020 10.1007/s00595-019-01953-z
2045012 原著 Sagawa N, Ohoshima Y, Hiratsuka T,
Kono Y, Etoh T, Inomata M.
Role of increased vascular permeability in chemotherapyinduced alopecia: In vivo imaging of the hair follicular microenvironment in mice Cancer Science 111(6):2146-2155. 2020 10.1111/cas.14396
2045013 原著 Ninomiya S, Amano S, Ogawa T, Ueda Y, Shiraishi N,  Inomata M, Shimoda K. The impact of dementia on surgical outcomes of laparoscopic cholecystectomy for symptomatic cholelithiasis and acute cholecystitis: A retrospective study Asian J Endosc Surg 13(3):351-358. 2020 10.1111/ases.12743
2045014 原著 Akagi T, Inomata M, Hara T, Mizusawa J, Katayama H, Shida D, Ohue M, Ito M, Kinugasa Y, Saida Y, Masaki T, Yamamoto S, Hanai T, Yamaguchi S, Watanabe M, Sugihara K, Fukuda H, Kanemitsu Y, Kitano S. Clinical Impact of D3 Lymph Node Dissection With Left Colic Artery (LCA) Preservation Compared to D3 Without LCA Preservation: Exploratory Subgroup Analysis of Data From JCOG0404 Ann Gastroenterol Surg 42:163-169. 2020 10.1002/ags3.12318
2045015 原著 Takayama H, Ohta M, Iwashita Y,
Uchida H, Shitomi Y, Yada K, Inomata M.
Altered glycosylation associated with dedifferentiation of hepatocellular carcinoma: a lectin microarray-based study. BMC Cancer 20(1)Online 192 2020 10.1186/s12885-020-6699-5
2045016 原著 Shibata T, Tsukamoto N, Fukuda H, Nabeta Y, Kurosawa K, Matsunari O, Takenaka R, Kanezaki S, Ishii K, Sakamoto T Successful treatment of left subclavian artery penetration due to ingestion of a safety pin by an elderly person Acute Med Surg 7(1)Online Only
e526
2020 10.1002/ams2.526
2045017 原著 Hirashita T, Hirashita Y, Iwashita Y, Endo Y, Kiyonaga M, Matsumoto S, Hijiya N, Moriyama M, Murakami K, Inomata M. S6 ribosomal protein phosphorylation is associated with malignancy of intraductal papillary mucinous neoplasm of the pancreas  Ann Gastroenterol Surg 4(5):571-579. 2020 10.1002/ags3.12367
2045018 原著 Noda M, Masuda T, Ito S, Tobo T, Kitagawa A, Hu Q, Shimizu D, Eguchi H, Etoh T, Ohno S, Inomata M, Mimori K. Circulating PD-1 mRNA in Peripheral Blood is a Potential Biomarker for Predicting Survival of Breast Cancer Patients. Ann Surg Oncol 27(10):4035-4043. 2020 10.1245/s10434-020-08375-z
2045019 原著 Akagi T, Inomata M, Fujishima H,
Fukuda M, Konishi T, Tsukamoto S, Teraishi F, Ozawa H, Tanaka K, Hida K, Sakai Y, Watanabe M. 
Preoperative chemoradiotherapy versus surgery alone for advanced low rectal cancer: a large multicenter cohort study in Japan Surg Today 50(11):1507-1514. 2020 10.1007/s00595-020-02034-2
2045020 原著 Matsuda T, Endo H, Inomata M, Hasegawa H, Kumamaru H, Miyata H, Sakai Y, Kakeji Y, Kitagawa Y,
Watanabe M.
Clinical outcome of laparoscopic vs open right hemicolectomy for colon cancer: A propensity score matching analysis of the Japanese National Clinical Database Ann Gastroenterol Surg 4(6):693-700. 2020 10.1002/ags3.12381
2045021 原著 Akagi T, Endo H, Inomata M,
Yamamoto H, Mori T, Kojima K, Kuroyanagi H, Sakai Y, Nakajima K, Shiroshita H, Etoh T, Saida Y,
Yamamoto S, Hasegawa H, Ueno H,
Kakeji Y, Miyata H, Kitagawa Y, Watanabe M.
Clinical impact of Endoscopic Surgical Skill Qualification System (ESSQS) by Japan Society for Endoscopic Surgery (JSES) for laparoscopic distal gastrectomy and low anterior resection based on the National Clinical Database (NCD) registry
Ann Gastroenterol Surg 4(6):721-734. 2020 10.1002/ags3.12384
2045022 原著 Matsuda T, Endo H, Inomata M,
Hasegawa H, Kumamaru H, Miyata H, Sakai Y, Kakeji Y, Kitagawa Y,
Watanabe M.
Clinical outcome of laparoscopic vs open right hemicolectomy for colon cancer: A propensity score matching analysis of the Japanese National Clinical Database Ann Gastroenterol Surg 4(6):693-700. 2020 10.1002/ags3.12381
2045023 原著 Miyamoto K, Wakabayashi M,
Mizusawa J, Nakamura K, Katayama H, Higashi T, Inomata M, Kitano S, Fujita S, Kanemitsu Y, Fukuda H.
Evaluation of the Representativeness and Generalizability of Japanese Clinical Trials for Localized Rectal/Colon Cancer: Comparing Participants in the Japan Clinical Oncology Group Study With Patients in Japanese Registries  Eur J Surg Oncol  46(9):1642-1648. 2020 10.1016/j.ejso.2020.04.005
2045024 原著 Yamashita Y, Aishima S, Nakao Y, Yoshizumi T, Nagano H, Kuroki T, Takami Y, Ide T, Ohta M, Takatsuki M, Nanashima A, Ishii F, Kitahara K, Iino S, Beppu T, Baba H, Eguchi S. Clinicopathological characteristics of combined hepatocellular cholangiocarcinoma from the viewpoint of patient prognosis after hepatic resection: High rate of early recurrence and its predictors Hepatol Res 50(7):863-870. 2020 10.1111/hepr.13507
2045025 原著 Ueda Y, Shiraishi N, Kawasaki T, Akagi T, Ninomiya S, Shiroshita H, Etoh T, Inomata M. Shot-and long-term outcomes of laparoscopic surgery for colorectal cancer in the elderly aged over 80 years old versus non-elderly: a retrospective cohort study BMC Geriatr 20(1)Open access 2020 10.1186/s12877-020-01779-2
2045026 原著 Hiratsuka T, Shigemitsu Y, Etoh T,
Kono Y, Suzuki K, Zeze K, Inomata M.
Appropriate mesh size in the totally extraperitoneal repair of groin hernias based on the intraoperative measurement of the myopectineal orifice. Surg Endosc May;35(5):2126-2133.Epub 2020 May 11. 2020 10.1007/s00464-020-07616-2
2045027 原著 Fujinaga A, Ohta M, Endo Y, Tada K, Kawamura M, Nakanuma H, Ogawa K, Watanabe K, Kawasaki T, Masuda T, Hirashita T, Toujigamori M, Inomata M. Clinical Signicance of Splenic Vessels and Anatomical Features in Laparoscopic Splenectomy J Laparoendosc Adv Surg Tech A Aug 17.Online ahead of print. 2020 10.1089/lap.2020.0576
2045028 原著 Hirashita T, Iwashita Y, Fujinaga A, Nakanuma H, Masuda T, Endo Y, Ohta M, Inomata M. Relationship between the tumor location and clinicopathological features in leftsided pancreatic ductal adenocarcinoma Surg Today May;51(5):814-820.Epub 2020 Sep 24. 2020 10.1007/s00595-020-02151-y
2045029 原著 Fujinaga A, Iwashita Y, Tada K,
Watanabe K, Kawasaki T, Masuda T, Hirashita T, Endo Y, Ohta M, Inomata M.
Efficacy of releasing impacted gallstones after percutaneous transhepatic gallbladder drainage for acute cholecystitis and consideration of the surgical difficulty during laparoscopic cholecystectomy J Hepatobiliary Pancreat Sci Oct 31. Online ahead of print. 2020 10.1002/jhbp.857
2045030 原著 Hirashita T, Iwashita Y, Fujinaga A, Nakanuma H, Tada K, Masuda T, Endo Y, Ohta M, Inomata M. Short internal pancreatic stent reduces pancreatic fistula in pancreatoduodenectomy Langenbeck's Archives of Surgery Published: 23 November  2020 10.1007/s00423-020-02036-1
2045031 原著 Ohta M, Maekawa S, Imazu H, Hatao F, Okumura Y, Kiyonaga H, Sawada Y, Inamori M, Seto Y, Masaki T, Kakuma T, Kasama K, Inomata M, Kitagawa Y, Kaminishi M, Kitano S. Endoscopic intragastric balloon therapy for 15 years in Japan: Results of nationwide surveys Asian J Endosc Surg Oct 20. Online ahead of print. 2020 10.1111/ases.12881
2045032 原著 Urakawa S, Momose K, Hirashita T,  Lowenfeld L, Milsom JW. Endoscopic submucosal dissection of large polyps in the right colon using an endoscopic snare with a double-balloon endolumenal interventional platform: an ex vivo study in a porcine colorectal model. Surg Endosc Published: 26 October 2020 10.1007/s00464-020-08100-7
2045033 症例報告 藤永淳郎、上田貴威、衛藤剛、白下英史、
武内裕、猪股雅史
メッシュを用い腹腔鏡下修復術を施行した助間ヘルニアの1 日本臨床外科学会雑誌  81(2):381-384. 2020  
2045034 症例報告 Fujinaga A, Akagi T, Etoh T, Tada K,
Itai Y, Kono Y, Hiratsuka T, Suzuki K, Shibata T, Ueda Y, Yojigamori M, Shiroshita H, Shiraishi N, Inomata M.
Laparoscopic two-stage operation for rectal cancer with refractory obstructive colitis after kidney transplantation: a case report Surg Case Rep 61 Open Access 2020 10.1186/s40792-020-0798-z
2045035 症例報告 Fujinaga A, Hirashita T, Iwashita Y, Nakanuma H, Tada K, Masuda T, Endo Y, Ohta M, Ono H, Murakami K, Inomata M. A Case of Ruptured Mucinous Cystadenoma of the Pancreas with Recurrence-Free Survival for 8 Years Surg Case Rep 61 Open Access 2020 10.1186/s40792-020-00816-x
2045036 症例報告 藤永淳郎、柴田智隆、鍋田祐介、松成 修、
猪股雅史、坂本照夫
コイル塞栓術が有用であった中結腸動脈瘤破裂の1 日本腹部救急医学会雑誌 40(3):517-520. 2020  
2045037 症例報告 Ninomiya S, Fujita S, Ogawa T, Ueda Y, Shiraishi N, Inomata M, Shimoda K. Incarcerated femoral hernia treated with elective totally extraperitoneal repair: a case report  J Surg Case Rep 2020(6) Open Access 2020 10.1093/jscr/rjaa158
2045038 症例報告 Fujinaga A, Shibata T, Etoh T, Tada K, Suzuki K, Nishiki K, Ogawa K, Kono Y, Hiratsuka T, Akagi T,  Ueda Y, Toujigamori M, Shiroshita H, Shiraishi N,  Inomata M. Laparoscopic transhiatal surgery for an epiphrenic esophageal diverticulum derived from a jackhammer esophagus: a case report Surg Case Rep 6(1) Open Access 2020 10.1186/s40792-020-00900-2
2045039 症例報告 Jianwei Ma, Akagi T, Etoh T, Kono Y, Hiratsuka T, Suzuki K, Shibata T, Ueda Y, Tojigamori M, Shiroshita H, Shiraihsi N, Inomata M. Quadruple advanced synchronous colorectal cancers successfully treated by laparoscopic surgery: a case report J Surg Case Rep 2020(8) eCollection 2020 10.1093/jscr/rjaa256
2045040 総説 多田和裕、猪股雅史 オペレコを極め、手術を極める 日本消化器外科学会誌 53(1):98-104. 2020  
2045041 総説 猪股雅史ほか 大腸癌取扱い規約次期改定に向けて 大腸がんperspective 4(4):55-61. 2020  
2045042 総説 太田正之、藤永淳郎、多田和裕、當寺ヶ盛学、遠藤裕一、猪股雅史 腹腔鏡下脾臓摘出術に必要な局所解剖 手術 745:789-794. 2020  
2045043 総説 白下英史、猪股雅史 虫垂切除術 消化器外科 臨時増刊号 435:660-663. 2020  
2045044 総説 河野洋平、平塚孝宏、赤木智徳、白下英史、
衛藤 剛、猪股雅史
結腸(右半・左半・S状結腸)切除術 消化器ナーシング2020春季増刊 324, 78-81. 2020  
2045045 総説 河野洋平、平塚孝宏、赤木智徳、白下英史、
衛藤 剛、猪股雅史
直腸切断術(マイルズ手術) 消化器ナーシング2020春季増刊 324, 82-85. 2020  
2045046 総説 河野洋平、平塚孝宏、赤木智徳、白下英史、
衛藤 剛、猪股雅史
ストーマ造設術(ハルトマン手術) 消化器ナーシング2020春季増刊 324, 86-89. 2020  
2045047 総説 河野洋平、平塚孝宏、赤木智徳、白下英史、
衛藤 剛、猪股雅史
大腸切除術 消化器ナーシング2020春季増刊 324, 123-126. 2020  
2045048 総説 Akagi T, Inomata M. Essential Advances in Surgical and Adjuvant Therapies for Colorectal Cancer 2018-2019  Ann Gastroenterol Surg 4139-46. 2020 10.1002/ags3.12307
2045049 総説 平下禎二郎、 岩下幸雄、 中沼寛明、増田崇、 遠藤裕一、猪股雅史 胆囊癌における腹腔鏡下胆囊摘出術と術中イメージング 手術 74(7):1053-1058. 2020  
2045050 総説 平塚孝宏、猪股雅史 腹腔鏡下大腸癌手術における腸管損傷の予防と対処法 手術 74(8):1145-1151. 2020  
2045051 総説 遠藤裕一、太田正之、猪股雅史 日本における肥満外科手術の現状と展望 医学のあゆみ 27410:934-938. 2020  
2045052 著書 猪股雅史 内視鏡外科手術の特徴と安全管理 消化器外科専門医の心得 上 56-57. 2020  
2045053 著書 猪股雅史 直腸癌手術の原則と術式選択 消化器外科専門医の心得 下 488-491. 2020  
2045054 著書 柴田智隆、坂本照夫 肝・脾損傷の治療指針 救急・集中治療 最新ガイドライン 2020-21 125-127. 2020  
2045055 著書 猪股雅史 「先生、抗がん剤で髪の毛は抜けますか?」 すべては笑顔のために 30-31. 2020  
2045056 著書 赤木智徳、上田貴威、白石憲男、鈴木浩輔、
二宮繁生、平下禎二郎、平塚孝宏、藤島紀、
増田崇
消化器疾患に対する腹腔鏡手術 術野形成の基礎固め 消化器疾患に対する腹腔鏡手術 術野形成の基礎固め 全頁 2020  
2045057 著書 遠藤裕一、太田正之、猪股雅史 糖尿病に対する効果 メタボリックサジェリー Clinical Update― Web手術動画(86分)付き 173-177. 2020  
2045058 その他 原貴生、八尋隆明 マウス実験で「肥満抑制」大分大と日田天領水が研究 西日本新聞 1/20, 26 2020  
2045059 その他 原貴生、八尋隆明 ミネラルウォーター減量効果 マウス実験で「肥満抑制」大分大と日田天領水が研究 西日本新聞 1/20, 26 2020  
2045060 その他 猪股雅史 内視鏡手術 助手はAI 朝日新聞(夕刊) 3/5, 7 2020  
2045061 その他 猪股雅史 33回日本内視鏡外科学会総会(JSES2020)、第17回世界内視鏡外科学会(WCES2020)開催に向けて 日本内視鏡外科学会ニュースレター(JSES News Letter 34, 1-2. 2020  
2045062 その他 猪股雅史 「年々増加する内視鏡手術と、さらなる改善が求められる患者安全の向上」
「術中の臓器認識を人工知能(
AI)でサポート」
m3.com Online 2020  
2045063 その他 猪股雅史 高齢者(76歳以上)大腸癌の治療戦略の選択 大腸がんperspective 4(4):17-22. 2020  
2045064 その他 猪股雅史 キーワードは「抗酸化」大学発の化粧品に注目 月間セーノ(5月号) 159, 14-15. 2020  
2045065 その他 猪股雅史 大学便り「大分大学医学部消化器・小児外科学講座の紹介迫りくる国難に負けない外科医を育成する 大分県医師会会報 788, 22-25. 2020  
2045066 その他 猪股雅史 AIがもたらす近未来の手術AIナビゲーション手術の臨床応用 九州医事新報 第672 672, 5 2020  
2045067 その他 猪股雅史 Current status of endoscopic surgery in Japan: The 14th National Survey of Endoscopic Surgery by the Japan Society for Endoscopic Surgery. Asian J Endosc Surg. 2020; 13: 7-18 日本内視鏡外科学会 ニュースレター 35, 8-9. 2020  
2045068 その他 猪股雅史 33回日本内視鏡外科学会総会(JSES)開催に向けて 日本内視鏡外科学会 ニュースレター 36, 2 2020  
2045069 その他 猪股雅史 内視鏡外科医療の研究・教育の国際発展 BUNDAI. OITA 159, 13 2020  
2045070 原著 Ueda Y, Fujishima H, Masuda T, Shiroshita H, Etoh T, Inomata M, Shiraishi N. Clinical impact of clinicopathological characteristics of undifferentiated advanced gastric cancer in elderly patients Gerontology and Geriatric Research 2(1):1-7. 2020 10.31487/j.GGR.2020.01.05
2045071 Proceedings Kono Y, Momose K, Urakawa S,
Alzghari T, Milsom J, Sharma S.
Use of a Novel Articulating Knife with Advanced Endoluminal Surgical Platform for Colorectal Polyp ESD: Learning Curve Analysis of Skill in Expert and Novice Operators Surg Endosc 8.13. 2020  
2045072 Proceedings Tateishi R, Hasegawa K, Kawaguchi Y, Takayama T, Izumi N, Yamanaka N,
Kudo M, Shimada M, Inomata M,
Kaneko S, Koike K, Omata M, Makuuchi M, Matsuyama Y, Kokudo N.
A multicenter non-randomized controlled trial to evaluate the efficacy of surgery vs. radiofrequency ablation for small hepatocellular carcinoma (SURF Cohort trial). J Clin Oncol 5.29-6.2. 2020  
2045073 Proceedings Ogawa K, Oshima Y, Kaisyakuji Y, Toujigamori M, Ohno Y, Inomata M. Detection of ganglion cells of Auerbach’s plexus in surgical specimen using Raman spectroscopy J Pediatr Surg 4.19-23. 2020  
2045074 Proceedings Suzuki K, Shibata T, Nishiki K, Fumoto S, Kono Y, Hiratsuka T, Akagi T, Ueda Y, Tojigamori M, Shiroshita H, Etoh T, Shiraishi N, Inomata M. Utility of PET-CT CMR after neoadjuvant chemotherapy with DCF for esophageal cancer as a predictive factor of recurrence J Clin Oncol 1.23-25. 2020