G. J. F. Esan

University of Ibadan

Also at University College Hospital, Ibadanfrom their recent papers

Publishing since 1970, latest 2009

Genetics
Hematology
Pediatrics, Perinatology and Child Health
Cell Biology
Physiology
Public Health, Environmental and Occupational Health

Their record on OpenAlex

Publications: 181970–2009
Citations: 317to those papers
h-index: 10i10-index 11
Field-weighted impact: 1.921.00 is the world average
World top 10%: 28%5 of 18 scored papers
Open access: 6%1 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

18 in all

The Osmotic Fragility of Red Cells in Newborns and Infants
2009Acta HaematologicaJournal11 citations10.1159/000208736
Aplastic Anaemia Associated with Anti-Tuberculosis Chemotherapy
2009Acta HaematologicaJournalSenior author6 citations10.1159/000207003

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

Genetics1161%
Hematology844%
Pediatrics, Perinatology and Child Health422%
Cell Biology211%
Physiology211%
Public Health, Environmental and Occupational Health211%
Clinical Biochemistry16%
Ecology, Evolution, Behavior and Systematics16%
Emergency Medicine16%
Endocrinology, Diabetes and Metabolism16%

Health Sciences
Life Sciences

Topics most written on

Hemoglobinopathies and Related Disorders10
Iron Metabolism and Disorders6
Neonatal Health and Biochemistry3
Erythrocyte Function and Pathophysiology2
Hematopoietic Stem Cell Transplantation2
Hemoglobin structure and function2
Malaria Research and Control2
Acute Myeloid Leukemia Research1
Blood groups and transfusion1
Botanical Research and Chemistry1
Child Nutrition and Water Access1
Diabetes and associated disorders1

Who they write with

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

Where their co-authors are

22% of their papers have a co-author abroad

papers co-written1111222Home

Most frequent partner countries

United States2
Switzerland1
United Kingdom1
Italy1

Papers with at least one author in that country.

Institutions written with most

University College Hospital, IbadanNG14 papers
National Institute of Allergy and Infectious DiseasesUS2 papers
National Institutes of HealthUS2 papers
National Research CouncilIT1 paper
University of OxfordGB1 paper
Walter Reed Army Institute of ResearchUS1 paper
Institute of Genetics and BiophysicsIT1 paper
World Health OrganizationCH1 paper
John Radcliffe HospitalGB1 paper
Sacred Heart HospitalNG1 paper

Where they publish

Acta Haematologica4
PubMed3
British Journal of Haematology2
Scandinavian Journal of Haematology2
The Lancet2
American Journal of Tropical Medicine and Hygiene1
European Journal Of Haematology

Development goals addressed

From each paper’s title and abstract

3Good health and well-being11
2Zero hunger2
1No poverty1
10Reduced inequalities1

Most cited

The Thalassaemia Syndromes in Nigeria
British Journal of Haematology3
197058 citationsWorld top 10%
SEVERE MALARIA AND GLUCOSE-6-PHOSPHATE-DEHYDROGENASE DEFICIENCY: A REAPPRAISAL OF THE MALARIA/G-6-P.D. HYPOTHESIS
The Lancet3
197948 citationsWorld top 10%
Alpha‐thalassaemia in Nigeria: Its interaction with sickle‐cell disease

Foetal haemoglobin levels in sickle cell anaemia in Nigerians.

1989PubMedJournalSenior author16 citations

Phenotypic Variation in Sickle Cell Trait

1974Scandinavian Journal of HaematologyJournalFirst author5 citations10.1111/j.1600-0609.1974.tb00283.x

Hemoglobin A2 and malaria

1973American Journal of Tropical Medicine and HygieneJournalFirst author7 citations10.4269/ajtmh.1973.22.153

Haemoglobin Bart's in Newborn Nigerians

1972British Journal of HaematologyJournalFirst authorCorresponding12 citations10.1111/j.1365-2141.1972.tb08788.x

The Thalassaemia Syndromes in Nigeria

1970British Journal of HaematologyJournalFirst authorCorresponding58 citations10.1111/j.1365-2141.1970.tb01600.x

International Journal of Gynecology & Obstetrics1

How it can be read

6% free to read

Green 1 · 6%A copy in a repository
Closed 17 · 94%Behind a paywall

Who funds it

3 of 18 papers name a funder

Medical Research Council1
Rockefeller Foundation1
U.S. Public Health Service1
World Health Organization1

European Journal Of Haematology3

198743 citationsWorld top 10%

Chronic leg ulcers in sickle cell disease: experience in Ibadan, Nigeria.

PubMed1

199131 citations

Genetic heterogeneity of "normal" human erythrocyte glucose-6-phosphate dehydrogenase: an isoelectrophoretic polymorphism.

Proceedings of the National Academy of Sciences3

197925 citationsWorld top 10%Open access · Green