S. Willis

1.6k total citations
74 papers, 1.2k citations indexed

About

S. Willis is a scholar working on Surgery, Oncology and Pulmonary and Respiratory Medicine. According to data from OpenAlex, S. Willis has authored 74 papers receiving a total of 1.2k indexed citations (citations by other indexed papers that have themselves been cited), including 42 papers in Surgery, 23 papers in Oncology and 13 papers in Pulmonary and Respiratory Medicine. Recurrent topics in S. Willis's work include Colorectal Cancer Surgical Treatments (16 papers), Anorectal Disease Treatments and Outcomes (13 papers) and HIV/AIDS Research and Interventions (9 papers). S. Willis is often cited by papers focused on Colorectal Cancer Surgical Treatments (16 papers), Anorectal Disease Treatments and Outcomes (13 papers) and HIV/AIDS Research and Interventions (9 papers). S. Willis collaborates with scholars based in Germany, United Kingdom and United States. S. Willis's co-authors include V. Schumpelick, Andreas Prescher, B. Klosterhalfen, Kai Kisielinski, V. Schumpèlick, J. Faß, R. Kasperk, Anne Murray Orr, P. G. Britton and David Orr and has published in prestigious journals such as American Journal of Obstetrics and Gynecology, British journal of surgery and The American Journal of Surgery.

In The Last Decade

S. Willis

70 papers receiving 1.1k citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
S. Willis Germany	19	506	248	205	136	127	74	1.2k
Caroline Nilsson Sweden	28	403 0.8×	165 0.7×	133 0.6×	84 0.6×	177 1.4×	86	2.3k
Kirk W. Reichard United States	16	719 1.4×	209 0.8×	94 0.5×	30 0.2×	432 3.4×	39	1.7k
Kylie‐Ann Mallitt Australia	21	201 0.4×	350 1.4×	181 0.9×	58 0.4×	136 1.1×	67	1.4k
Prem Chopra India	23	564 1.1×	166 0.7×	367 1.8×	198 1.5×	271 2.1×	152	1.9k
Eleni G. Mourtzoukou Greece	11	280 0.6×	133 0.5×	141 0.7×	77 0.6×	129 1.0×	13	1.4k
Niklaus Gyr Switzerland	18	579 1.1×	209 0.8×	101 0.5×	25 0.2×	59 0.5×	58	1.2k
David J. Keljo United States	28	630 1.2×	77 0.3×	50 0.2×	45 0.3×	232 1.8×	74	2.6k
Cristina Oana Mărginean Romania	21	503 1.0×	52 0.2×	138 0.7×	22 0.2×	178 1.4×	128	1.3k
Caitlin A. Smith United States	15	373 0.7×	148 0.6×	165 0.8×	57 0.4×	94 0.7×	60	1.1k
David M. Fleischer United States	27	1.2k 2.4×	133 0.5×	180 0.9×	223 1.6×	186 1.5×	88	2.8k

Countries citing papers authored by S. Willis

Since Specialization

Citations

This map shows the geographic impact of S. Willis'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 S. Willis with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites S. Willis more than expected).

Fields of papers citing papers by S. Willis

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by S. Willis. 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 S. Willis. The network helps show where S. Willis may publish in the future.

Co-authorship network of co-authors of S. Willis

This figure shows the co-authorship network connecting the top 25 collaborators of S. Willis. A scholar is included among the top collaborators of S. Willis 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 S. Willis. S. Willis is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Williams, R., et al.. (2018). Barriers and enablers to improved access to health information for patients with low health literacy in the radiotherapy department. Radiography. 24. S11–S15. 9 indexed citations

Willis, S., et al.. (2018). Distress Among Locally Advanced Breast Cancer Patients from Diagnosis to Follow-Up: A Critical Review of Literature. Journal of medical imaging and radiation sciences. 49(3). 325–336. 2 indexed citations

Klink, Christian, S. Willis, Uwe Neumann, & Marc H.A. Jansen. (2010). Protektives Ileostoma vs. protektives Transversostoma. Der Chirurg. 81(11). 974–977. 7 indexed citations

Willis, S., K. Junge, Ramin Ebrahimi, Andreas Prescher, & V. Schumpelick. (2009). Haemorrhoids – a collagen disease?. Colorectal Disease. 12(12). 1249–1253. 26 indexed citations

Krones, Carsten J., S. Willis, G. Steinau, & V. Schumpelick. (2007). Gerechte Verteilung knapper Gesundheitsressourcen: Ein aktuelles Patientenmeinungsbild. RWTH Publications (RWTH Aachen). 78(6). 543–547.

Willis, S., et al.. (2007). [Fair allocation of reduced resources in the German health care system. The patient's view].. Chirurg. 78(6). 543–547. 1 indexed citations

Willis, S., et al.. (2006). Defecation mechanisms after anterior resection with J-pouch-anal and side-to-end anastomosis in dogs. International Journal of Colorectal Disease. 22(2). 161–165. 8 indexed citations

Willis, S. & V. Schumpelick. (2005). Offene Kolonchirurgie. Der Chirurg. 76(11). 1073–1081. 4 indexed citations

Willis, S., et al.. (2004). Stellenwert von Biofeedback-Training mit kombinierter analer Elektrostimulation bei idiopathischer Stuhlinkontinenz. Zentralblatt für Chirurgie - Zeitschrift für Allgemeine Viszeral- Thorax- und Gefäßchirurgie. 129(3). 211–215. 4 indexed citations

10.

Willis, S. & M. Stumpf. (2004). Insuffizienzen nach Eingriffen am unteren Gastrointestinaltrakt. Der Chirurg. 75(11). 1071–1078. 18 indexed citations

11.

Fackeldey, V., K. Junge, Axel Franke, et al.. (2003). Repair of intercostal pulmonary herniation. Hernia. 7(4). 215–217. 6 indexed citations

12.

Kirschner‐Hermanns, Ruth, et al.. (2003). Stuhlbeschwerden nach radikaler perinealer Prostatektomie. Der Urologe. 42(5). 677–684. 4 indexed citations

13.

Willis, S., et al.. (2003). Funktionelle Langzeitergebnisse und Lebensqualität nach Proktokolektomie und Ileumpouch-analer Anastomose bei Colitis ulcerosa. Zentralblatt für Chirurgie - Zeitschrift für Allgemeine Viszeral- Thorax- und Gefäßchirurgie. 128(8). 663–668. 7 indexed citations

14.

Kisielinski, Kai, S. Willis, Andreas Prescher, B. Klosterhalfen, & V. Schumpelick. (2002). A simple new method to calculate small intestine absorptive surface in the rat.. Clinical and Experimental Medicine. 2(3). 131–135. 165 indexed citations

15.

Willis, S., et al.. (2002). Childbirth and incontinence: a prospective study on anal sphincter morphology and function before and early after vaginal delivery. Langenbeck s Archives of Surgery. 387(2). 101–107. 27 indexed citations

16.

Faridi, Andreé, et al.. (2002). Anal sphincter injury during vaginal delivery – an argument for cesarean section on request?. Journal of Perinatal Medicine. 30(5). 379–87. 45 indexed citations

17.

Willis, S., B. Klosterhalfen, S. Titkova, et al.. (2000). Effect of Artificial Valves on Intestinal Adaptation in the Short-Bowel Syndrome: An Integrated Study of Morphological and Functional Changes in Rats. European Surgical Research. 32(2). 111–119. 9 indexed citations

18.

Willis, S., et al.. (2000). Myoelectric and motor activity after proctocolectomy and ileal pouch–anal anastomosis in dogs. Surgery. 127(2). 170–177. 4 indexed citations

19.

Schumpelick, V., S. Willis, & E. Schippers. (1998). Colitis ulcerosa – funktionelle Spätresultate nach ileumpouchanaler Anastomose. Der Chirurg. 69(10). 1013–1019. 5 indexed citations

20.

Willis, S., et al.. (1991). Drug abuse and psychiatric findings in HIV-seropositive pregnant patients. General Hospital Psychiatry. 13(1). 4–8. 37 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.

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