Understanding the Scientific Cooperation in Incidental Gallbladder Cancer: from a Bibliometric Perspective
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RESEARCH COMMUNICATION
Understanding the Scientific Cooperation in Incidental Gallbladder Cancer: from a Bibliometric Perspective Wenjing Fu 1 & Xiao Liang 2 & Fangqiang Wei 3 & Jiasheng Cao 2 & Wenchao Chen 2 & Yingying Mao 1 & Tunan Yu 2 Received: 27 March 2020 / Accepted: 1 September 2020 # 2020 The Society for Surgery of the Alimentary Tract
Keywords Bibliometric analysis . Incidental gallbladder cancer . Research hotspots . Scientific cooperation
Introduction Incidental gallbladder cancer (IGBC) was occasionally detected during operations intended for benign gallbladder diseases.1 Over the last decade, high-quality evidence was more likely to be achieved by cooperative researches, rather than single-center experiences. This study aimed to use bibliometric methods to quantitatively analyze IGBC scientific cooperation, as well as its research hotspots.
degree of centrality was used to measure the importance of a country or institution in the networks. To explore research hotspots, keywords co-occurrence analysis3 was performed by using VOSviewer 1.6.13.4 On the co-occurrence map, keywords clusters were identified and summarized as research hotspots.
Results Methods A search of the literature since 2010 was conducted in the Web of Science Core Collection (WOSCC) database (accessed on February 5, 2020). Various synonyms of IGBC were used including “incidental gallbladder cancer,” “incidental gallbladder malignancy,” “incidental gallbladder tumor,” “unexpected gallbladder cancer,” “unexpected gallbladder malignancy,” and “unexpected gallbladder tumor.” To draw a cooperative network, social network analysis2 was performed by using Ucinet 6.204 and Netdraw 2.081. The * Yingying Mao [email protected] * Tunan Yu [email protected] 1
School of Public Health, Zhejiang Chinese Medical University, Hangzhou 310053, Zhejiang, China
2
Department of General Surgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou 310016, Zhejiang Province, China
3
Department of Hepatobiliary and Pancreatic Surgery, Zhejiang Provincial People’s Hospital, Hangzhou Medical College, Hangzhou 310014, Zhejiang Province, China
A total of 272 publications were identified from WOSCC since 2010. An increasing trend was observed in the number of annual publications, from 10 in 2010 to 51 in 2019 (Fig. 1a, no publication in 2020 until searching date). Globally, 47 countries/areas participated in publishing research papers related to IGBC, with the top 5 as the USA (60, 22.06%), India (37, 13.60%), Italy (20, 7.35%), Turkey (20, 7.35%), and England (19, 6.99%) (Fig. 1b). The number of publications based on international or institutional cooperation was also rising annually (Fig. 1c). In international cooperation, the USA scored the highest degree of centrality as 23.00 in social network analysis, followed by France (17.00), Germany (16.00), England (15.00), and Belgium (14.00) (Fig. 1d). In institutional cooperation, the largest research team identified by bibliometric “clustering” was the US extrahepatic biliary malig
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