Emeka Ray-Offor

University of Port Harcourt

Publishing since 2014, latest 2025

Surgery
Oncology
Emergency Medicine
Pulmonary and Respiratory Medicine
Epidemiology
Gastroenterology

Publications: 602014–2025
Citations: 288to those papers
h-index: 9i10-index 9
Field-weighted impact: 0.541.00 is the world average
World top 10%: 3%2 of 60 scored papers
Open access: 57%34 papers free to read

By year

Papers, and the citations to them

Publications, left axisCitations to that year’s papers, right axis2026 still in progress

Career

On their papers

Every institution they have given on a paper.

Publications

60 in all

Helicobacter pylori and precancerous lesions of the stomach in a Nigerian Metropolis: A Cohort Study
2018Nigerian Journal of Clinical PracticeJournalOpen accessFirst authorCorresponding12 citations10.4103/njcp.njcp_302_17
Evaluation of magnetic resonance imaging findings in adult patients with nontraumatic low back pain in South-South Nigeria

Download CV:PDFWord

Citations received each year

Peerford

To all their work, old papers included. Google Scholar also counts citations from theses, books and web pages, so its line runs higher.

What they work on

From the classification of each paper

Subfields

Surgery5083%
Oncology2948%
Emergency Medicine813%
Pulmonary and Respiratory Medicine712%
Epidemiology610%
Gastroenterology58%
Obstetrics and Gynecology35%
Public Health, Environmental and Occupational Health35%
Microbiology23%
Pathology and Forensic Medicine23%

Health Sciences
Life Sciences

Topics most written on

Colorectal Cancer Surgical Treatments18
Diverticular Disease and Complications15
Colorectal Cancer Screening and Detection13
Minimally Invasive Surgical Techniques10
Stoma care and complications8
Anorectal Disease Treatments and Outcomes7
Appendicitis Diagnosis and Management6
Gastrointestinal disorders and treatments6
Hernia repair and management6
Helicobacter pylori-related gastroenterology studies5
Gastrointestinal Bleeding Diagnosis and Treatment4
Intestinal and Peritoneal Adhesions4

Who they write with

Their most frequent co-authors, and the papers those co-authors share

Where their co-authors are

42% of their papers have a co-author abroad

papers co-written14710121518Home

Most frequent partner countries

United States21
Egypt13
Israel11
United Kingdom4
Switzerland1
Italy1

Papers with at least one author in that country.

Institutions written with most

University of Port Harcourt Teaching HospitalNG50 papers
Cleveland Clinic FloridaUS20 papers
Mansoura UniversityEG13 papers
Rivers State UniversityNG11 papers
Mansoura University HospitalEG10 papers
Sheba Medical CenterIL7 papers
Florida Atlantic UniversityUS6 papers
Hadassah Medical CenterIL6 papers
Hebrew University of JerusalemIL5 papers
Tel Aviv UniversityIL4 papers

Where they publish

PubMed5
Cureus4
Afrischolar Discovery3
Colorectal Disease3
International Journal of Surgery Case Reports3
Nigerian Journal of Surgery3
Journal of Surgical Oncology

Development goals addressed

From each paper’s title and abstract

3Good health and well-being28
1No poverty2
4Quality education1
7Affordable and clean energy1
8Decent work and economic growth1
16Peace, justice and strong institutions1
17Partnerships for the goals1

Most cited

Hemorrhoidal disease: Predilection sites, pattern of presentation, and treatment
Annals of African Medicine3
201967 citationsWorld top 10%Open access · Green
Pilot study on laparoscopic surgery in Port-Harcourt, Nigeria
Nigerian Journal of Surgery
201421 citationsOpen access · Gold
Strategies to reduce ileus after colorectal surgery: A qualitative umbrella review of the collective evidence

West African journal of radiology

Ulcerated choledochocele: A case report

2016International Journal of Surgery Case ReportsJournalOpen accessFirst authorCorresponding2 citations10.1016/j.ijscr.2016.08.028

Endoscopic evaluation of upper and lower gastro-intestinal bleeding

2015Nigerian Journal of SurgeryJournalOpen accessFirst authorCorresponding16 citations10.4103/1117-6806.162575

Volvulus complicating jejunal diverticulosis: A case report

2015International Journal of Surgery Case ReportsJournalOpen access7 citations10.1016/j.ijscr.2015.02.017

Toothbrush! An Unusual Ingested Foreign Body in a Child

2015Journal of Case ReportsJournalOpen accessCorresponding2 citations10.17659/01.2015.0131

Upper gastro-intestinal endoscopy in Port-Harcourt, Nigeria: an Audit

2015Afrischolar DiscoveryJournalOpen accessFirst author2 citations10.60787/tnhj.v14i3.171

Hodgkin's Lymphoma of the Breast

2015Afrischolar DiscoveryJournalOpen access0 citations10.60787/tnhj.v14i1.133

Upper Gastro-Intestinal Endoscopy in Port-Harcourt: An Audit

2015Afrischolar DiscoveryJournalOpen accessFirst author0 citations10.60787/tnhj.v13i4.119

Pilot study on laparoscopic surgery in Port-Harcourt, Nigeria

2014Nigerian Journal of SurgeryJournalOpen accessFirst author21 citations10.4103/1117-6806.127104

Pan African Medical Journal2

How it can be read

57% free to read

Diamond 8 · 13%Free to read and to publish
Gold 11 · 18%In an open-access journal
Hybrid 6 · 10%Open in a subscription journal
Bronze 2 · 3%Free to read, no open licence
Green 7 · 12%A copy in a repository
Closed 26 · 43%Behind a paywall

Who funds it

1 of 60 papers name a funder

Fogarty International Center1

202319 citationsWorld top 10%

Endoscopic evaluation of upper and lower gastro-intestinal bleeding

Nigerian Journal of Surgery3

201516 citationsOpen access · Gold