John S. Vassilakis

1.0k total citations
40 papers, 787 citations indexed

About

John S. Vassilakis is a scholar working on Surgery, Gastroenterology and Pulmonary and Respiratory Medicine. According to data from OpenAlex, John S. Vassilakis has authored 40 papers receiving a total of 787 indexed citations (citations by other indexed papers that have themselves been cited), including 31 papers in Surgery, 22 papers in Gastroenterology and 7 papers in Pulmonary and Respiratory Medicine. Recurrent topics in John S. Vassilakis's work include Gastroesophageal reflux and treatments (17 papers), Helicobacter pylori-related gastroenterology studies (10 papers) and Gastrointestinal motility and disorders (9 papers). John S. Vassilakis is often cited by papers focused on Gastroesophageal reflux and treatments (17 papers), Helicobacter pylori-related gastroenterology studies (10 papers) and Gastrointestinal motility and disorders (9 papers). John S. Vassilakis collaborates with scholars based in Greece and United States. John S. Vassilakis's co-authors include Evaghelos Xynos, Emmanuel Chrysos, John Tsiaoussis, George Tzovaras, Odysseas Zoras, George Pechlivanides, Anastasios Tzortzinis, Elias Athanasakis, Apostolos Mantides and Odysseas Zoras and has published in prestigious journals such as Gastroenterology, The American Journal of Gastroenterology and British journal of surgery.

In The Last Decade

John S. Vassilakis

40 papers receiving 748 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
John S. Vassilakis Greece 18 651 410 175 111 106 40 787
Debra M. Geno United States 20 1.1k 1.7× 563 1.4× 376 2.1× 135 1.2× 30 0.3× 45 1.2k
Jamal Hayat United Kingdom 13 372 0.6× 207 0.5× 114 0.7× 115 1.0× 18 0.2× 41 618
Thomas Zikos United States 13 280 0.4× 202 0.5× 47 0.3× 36 0.3× 125 1.2× 34 451
Mogens Bove Sweden 16 380 0.6× 130 0.3× 149 0.9× 211 1.9× 74 0.7× 30 725
Edgar J.B. Furnée Netherlands 17 977 1.5× 649 1.6× 71 0.4× 82 0.7× 261 2.5× 49 1.1k
Nsidinanya Okike United States 8 266 0.4× 161 0.4× 363 2.1× 353 3.2× 156 1.5× 12 829
Kasaya Tantiphlachiva Thailand 10 618 0.9× 162 0.4× 409 2.3× 26 0.2× 198 1.9× 35 727
WC Wu Taiwan 15 307 0.5× 185 0.5× 11 0.1× 154 1.4× 114 1.1× 27 598
Rami Sweis United Kingdom 25 1.6k 2.5× 1.5k 3.6× 84 0.5× 210 1.9× 31 0.3× 77 1.8k
José Estevão‐Costa Portugal 17 587 0.9× 90 0.2× 117 0.7× 153 1.4× 10 0.1× 65 714

Countries citing papers authored by John S. Vassilakis

Since Specialization
Citations

This map shows the geographic impact of John S. Vassilakis's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by John S. Vassilakis with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites John S. Vassilakis more than expected).

Fields of papers citing papers by John S. Vassilakis

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by John S. Vassilakis. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by John S. Vassilakis. The network helps show where John S. Vassilakis may publish in the future.

Co-authorship network of co-authors of John S. Vassilakis

This figure shows the co-authorship network connecting the top 25 collaborators of John S. Vassilakis. A scholar is included among the top collaborators of John S. Vassilakis based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with John S. Vassilakis. John S. Vassilakis is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Chrysos, Emmanuel, Elias Athanasakis, John S. Vassilakis, Odysseas Zoras, & Evaghelos Xynos. (2002). Total colectomy and J‐pouch ileorectal anastomosis for obstructed tumours of the rectosigmoid junction. ANZ Journal of Surgery. 72(2). 92–94. 4 indexed citations
2.
Chrysos, Emmanuel, et al.. (2001). Erythromycin enhances oesophageal motility in patients with gastro‐oesophageal reflux. ANZ Journal of Surgery. 71(2). 98–102. 34 indexed citations
3.
Tzortzinis, Anastasios, et al.. (2001). Laparoscopic Repair of Paraesophageal Hernia. Endoscopy. 33(7). 590–594. 30 indexed citations
4.
Tsiaoussis, Ioannis, et al.. (1998). Gallbladder Fasting Volume Is Reduced and Gallbladder Postprandial Emptying Is Enhanced by Intravenous Erythromycin. Digestive Diseases and Sciences. 43(1). 178–182. 6 indexed citations
5.
Xynos, Evaghelos, et al.. (1998). Effect of oral cisapride on gallbladder emptying during fasting and postprandial states. Academic Radiology. 5(2). 115–118. 5 indexed citations
6.
Vassilakis, John S., George Tzovaras, Emmanuel Chrysos, et al.. (1997). Roux-Y choledochojejunostomy and duodenojejunostomy for the complicated duodenal diverticulum. The American Journal of Surgery. 174(1). 45–48. 17 indexed citations
7.
Xynos, Evaghelos, et al.. (1997). Effect of the Menstrual Cycle on Gallbladder Fasting Volume and Postprandial Emptying in Nulliparous Young Females. Investigative Radiology. 32(6). 330–334. 1 indexed citations
8.
Xynos, Evaghelos, George Tzovaras, Ioannis Petrakis, Emmanuel Chrysos, & John S. Vassilakis. (1996). Laparoscopic Heller's Cardiomyotomy and Dor's Fundoplication for Esophageal Achalasia. Journal of Laparoendoscopic Surgery. 6(4). 253–258. 9 indexed citations
9.
Zoras, Odysseas, et al.. (1996). A composite score of enterogastric reflux quantitation on 99mTc-HIDA scintigraphy.. PubMed. 42(6). 847–50. 2 indexed citations
10.
Tzovaras, George, Evaghelos Xynos, Emmanuel Chrysos, Apostolos Mantides, & John S. Vassilakis. (1996). The effect of intravenous erythromycin on esophageal motility in healthy subjects. The American Journal of Surgery. 171(3). 316–319. 26 indexed citations
11.
Vassilakis, John S., George Pechlivanides, Odysseas Zoras, et al.. (1995). Anorectal function after low anterior resection of the rectum. International Journal of Colorectal Disease. 10(2). 101–106. 36 indexed citations
12.
Xynos, Evaghelos, Anastasios Tzortzinis, Emmanuel Chrysos, George Tzovaras, & John S. Vassilakis. (1993). Anal manometry in patients with fissure-in-ano before and after internal sphincterotomy. International Journal of Colorectal Disease. 8(3). 125–128. 45 indexed citations
13.
Vassilakis, John S., et al.. (1992). Surgical treatment of the enterogastric reflux syndrome: preoperative and postoperative estimation by 99mTc-HIDA scintigraphy.. PubMed. 58(12). 787–91. 1 indexed citations
14.
Xynos, Evaghelos, et al.. (1990). Varicosis Coli totalis: Report of a Case of Idiopathic Aetiology. Digestion. 47(4). 232–235. 15 indexed citations
15.
Xynos, Evaghelos, et al.. (1990). Hydatid Disease of the Liver. Diagnosis and Surgical Treatment. HPB Surgery. 4(1). 59–67. 12 indexed citations
16.
Vassilakis, John S., et al.. (1990). Intrabiliary Rupture of Hydatid Cyst of the Liver. Digestive Surgery. 7(3). 148–152. 1 indexed citations
17.
Vassilakis, John S., et al.. (1988). Fundic, Antral and Pancreatic D-Cell Population Changes following Oophorectomy and Sex Hormone Administration in Guinea Pigs. European Surgical Research. 20(2). 144–148. 3 indexed citations
18.
Xynos, Evaghelos, et al.. (1985). Sex related differences in g and d cell populations of the gastric mucosa in guinea pigs experimental immunocytochemical study. Pathology - Research and Practice. 180(3). 326. 1 indexed citations
19.
Vassilakis, John S., et al.. (1982). Ulcer associated and nonspecific duodenitis treatment by cimetidine. Gastroenterologia Japonica. 17(3). 214–217. 3 indexed citations
20.
Irvin, T T, John S. Vassilakis, Dipankar Chattopadhyay, & M G Greaney. (1978). Abdominal wound healing in jaundiced patients. British journal of surgery. 65(7). 521–522. 35 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by Debra M. Geno Breakdown of academic impact, for papers by Jamal Hayat Breakdown of academic impact, for papers by Thomas Zikos Breakdown of academic impact, for papers by Mogens Bove Breakdown of academic impact, for papers by Edgar J.B. Furnée Breakdown of academic impact, for papers by Nsidinanya Okike Breakdown of academic impact, for papers by Kasaya Tantiphlachiva Breakdown of academic impact, for papers by WC Wu Breakdown of academic impact, for papers by Rami Sweis Breakdown of academic impact, for papers by José Estevão‐Costa
Rankless by CCL
2026