Asif Johar

2.6k total citations
84 papers, 1.7k citations indexed

About

Asif Johar is a scholar working on Surgery, Pulmonary and Respiratory Medicine and Oncology. According to data from OpenAlex, Asif Johar has authored 84 papers receiving a total of 1.7k indexed citations (citations by other indexed papers that have themselves been cited), including 76 papers in Surgery, 45 papers in Pulmonary and Respiratory Medicine and 20 papers in Oncology. Recurrent topics in Asif Johar's work include Esophageal Cancer Research and Treatment (68 papers), Esophageal and GI Pathology (53 papers) and Gastric Cancer Management and Outcomes (23 papers). Asif Johar is often cited by papers focused on Esophageal Cancer Research and Treatment (68 papers), Esophageal and GI Pathology (53 papers) and Gastric Cancer Management and Outcomes (23 papers). Asif Johar collaborates with scholars based in Sweden, United Kingdom and Netherlands. Asif Johar's co-authors include Pernilla Lagergren, Jesper Lagergren, Poorna Anandavadivelan, Anna Schandl, Anna Wikman, Joonas H. Kauppila, Magnus Nilsson, Lena Martin, Caroline Nordenvall and Emil Pieniowski and has published in prestigious journals such as Journal of Clinical Oncology, PLoS ONE and JNCI Journal of the National Cancer Institute.

In The Last Decade

Asif Johar

82 papers receiving 1.7k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Asif Johar Sweden 20 1.3k 733 589 352 111 84 1.7k
Abhiram Sharma United Kingdom 19 780 0.6× 164 0.2× 635 1.1× 110 0.3× 38 0.3× 53 1.1k
Simone E. J. Eerenstein Netherlands 18 378 0.3× 456 0.6× 518 0.9× 385 1.1× 28 0.3× 53 1.3k
Sandra Beijer Netherlands 22 274 0.2× 185 0.3× 760 1.3× 575 1.6× 211 1.9× 74 1.4k
Therese Juul Denmark 15 1.1k 0.9× 202 0.3× 1.2k 2.0× 49 0.1× 13 0.1× 43 1.5k
M. A. G. Sprangers Netherlands 15 411 0.3× 339 0.5× 488 0.8× 31 0.1× 27 0.2× 31 1.0k
Pasithorn A. Suwanabol United States 18 435 0.3× 180 0.2× 228 0.4× 68 0.2× 58 0.5× 88 1.2k
Jennifer Baima United States 15 466 0.4× 273 0.4× 921 1.6× 275 0.8× 160 1.4× 37 1.5k
Beate Bestmann Germany 13 393 0.3× 205 0.3× 475 0.8× 37 0.1× 18 0.2× 25 740
Natalie Pulenzas Canada 19 379 0.3× 286 0.4× 561 1.0× 132 0.4× 25 0.2× 48 1.2k
Brian T. Johnston United Kingdom 29 1.6k 1.2× 796 1.1× 305 0.5× 306 0.9× 6 0.1× 65 2.6k

Countries citing papers authored by Asif Johar

Since Specialization
Citations

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

Fields of papers citing papers by Asif Johar

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Asif Johar

This figure shows the co-authorship network connecting the top 25 collaborators of Asif Johar. A scholar is included among the top collaborators of Asif Johar 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 Asif Johar. Asif Johar 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.
Nordenvall, Caroline, Gabriella Jansson Palmer, M. E. R. Williamson, et al.. (2025). The patient perspective on transanal irrigation treatment for low anterior resection syndrome after rectal cancer surgery - a qualitative and quantitative study. BMC Gastroenterology. 25(1). 64–64. 2 indexed citations
2.
Johar, Asif, et al.. (2024). Trajectories of patient-reported outcomes after oesophageal cancer surgery − A population-based study. European Journal of Cancer. 206. 114133–114133. 2 indexed citations
3.
4.
Lagergren, Pernilla, et al.. (2024). Severe reflux, malnutrition and health-related quality of life after oesophageal cancer surgery: A prospective nationwide cohort study. European Journal of Surgical Oncology. 50(7). 108435–108435. 3 indexed citations
5.
Elliott, Jessie A., Fredrik Klevebro, Styliani Mantziari, et al.. (2023). 143. NEOADJUVANT CHEMORADIOTHERAPY VERSUS CHEMOTHERAPY FOR THE TREATMENT OF LOCALLY ADVANCED ESOPHAGEAL ADENOCARCINOMA IN THE EUROPEAN MULTICENTER ENSURE STUDY. Diseases of the Esophagus. 36(Supplement_2). 1 indexed citations
6.
Cheng, Zhao, Asif Johar, Jesper Lagergren, Anna Schandl, & Pernilla Lagergren. (2023). Health-related quality of life trajectories up to 15 years after curative treatment for esophageal cancer: a prospective cohort study. International Journal of Surgery. 110(3). 1537–1545. 6 indexed citations
7.
Elliott, Jessie A., Sheraz R. Markar, Fredrik Klevebro, et al.. (2022). An International Multicenter Study Exploring Whether Surveillance After Esophageal Cancer Surgery Impacts Oncological and Quality of Life Outcomes (ENSURE). Annals of Surgery. 277(5). e1035–e1044. 15 indexed citations
8.
Eyck, Ben M., Fredrik Klevebro, Berend J. van der Wilk, et al.. (2021). Lasting symptoms and long-term health-related quality of life after totally minimally invasive, hybrid and open Ivor Lewis esophagectomy. European Journal of Surgical Oncology. 48(3). 582–588. 9 indexed citations
9.
Lagergren, Pernilla, Asif Johar, Eivind Ness‐Jensen, & Anna Schandl. (2021). Prediction of severe reflux after oesophageal cancer surgery. European Journal of Surgical Oncology. 48(5). 1011–1016. 3 indexed citations
10.
Schandl, Anna, Joonas H. Kauppila, Poorna Anandavadivelan, Asif Johar, & Pernilla Lagergren. (2019). Predicting the Risk of Weight Loss After Esophageal Cancer Surgery. Annals of Surgical Oncology. 26(8). 2385–2391. 21 indexed citations
11.
Schandl, Anna, et al.. (2018). Education level and health-related quality of life after oesophageal cancer surgery: a nationwide cohort study. BMJ Open. 8(8). e020702–e020702. 18 indexed citations
12.
Kauppila, Joonas H., Shao-Hua Xie, Asif Johar, Sheraz R. Markar, & Pernilla Lagergren. (2017). Meta-analysis of health-related quality of life after minimally invasive versus open oesophagectomy for oesophageal cancer. British journal of surgery. 104(9). 1131–1140. 72 indexed citations
13.
Hynes, O., Poorna Anandavadivelan, James Gossage, et al.. (2017). The impact of pre- and post-operative weight loss and body mass index on prognosis in patients with oesophageal cancer. European Journal of Surgical Oncology. 43(8). 1559–1565. 53 indexed citations
14.
15.
Schandl, Anna, Asif Johar, Jesper Lagergren, & Pernilla Lagergren. (2016). Lymphadenectomy and health-related quality of life after oesophageal cancer surgery: a nationwide, population-based cohort study. BMJ Open. 6(8). e012624–e012624. 12 indexed citations
16.
Schandl, Anna, Jesper Lagergren, Asif Johar, & Pernilla Lagergren. (2016). Health-related quality of life 10 years after oesophageal cancer surgery. European Journal of Cancer. 69. 43–50. 82 indexed citations
17.
Brusselaers, Nele, Fredrik Mattsson, Asif Johar, et al.. (2014). Marital status and survival after oesophageal cancer surgery: a population-based nationwide cohort study in Sweden. BMJ Open. 4(6). e005418–e005418. 17 indexed citations
18.
Schaaf, Maartje van der, Maryam Derogar, Asif Johar, et al.. (2014). Reoperation after oesophageal cancer surgery in relation to long-term survival: a population-based cohort study. BMJ Open. 4(3). e004648–e004648. 18 indexed citations
19.
Brusselaers, Nele, Rickard Ljung, Fredrik Mattsson, et al.. (2013). Education level and survival after oesophageal cancer surgery: a prospective population-based cohort study. BMJ Open. 3(12). e003754–e003754. 9 indexed citations
20.
Djärv, Therese, Anna Wikman, Asif Johar, et al.. (2013). The role of diabetes and other co-morbidities on survival after esophageal cancer surgery in a population-based study. The American Journal of Surgery. 206(4). 539–543. 16 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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