P.N. John

430 total citations
13 papers, 271 citations indexed

About

P.N. John is a scholar working on Genetics, Obstetrics and Gynecology and Hematology. According to data from OpenAlex, P.N. John has authored 13 papers receiving a total of 271 indexed citations (citations by other indexed papers that have themselves been cited), including 5 papers in Genetics, 3 papers in Obstetrics and Gynecology and 3 papers in Hematology. Recurrent topics in P.N. John's work include Hemoglobinopathies and Related Disorders (5 papers), Iron Metabolism and Disorders (3 papers) and Gestational Diabetes Research and Management (3 papers). P.N. John is often cited by papers focused on Hemoglobinopathies and Related Disorders (5 papers), Iron Metabolism and Disorders (3 papers) and Gestational Diabetes Research and Management (3 papers). P.N. John collaborates with scholars based in Saudi Arabia, United Kingdom and United States. P.N. John's co-authors include Richard David Leslie, Jonathan M. L. White, D A Pyke, R. P. Perrine, Marcus Pembrey, Susan P. Perrine, Mette Hammer, A. J. Bellingham, M. D. Flynn and Barbara J. Boucher and has published in prestigious journals such as The Lancet, American Journal of Obstetrics and Gynecology and Diabetologia.

In The Last Decade

P.N. John

13 papers receiving 240 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
P.N. John Saudi Arabia	9	103	92	85	75	60	13	271
Octavious Talbot United States	9	148 1.4×	175 1.9×	14 0.2×	38 0.5×	36 0.6×	10	282
Karl‐Heinz Eichhorn Germany	8	61 0.6×	83 0.9×	15 0.2×	18 0.2×	25 0.4×	15	170
Lihua Bi China	6	107 1.0×	101 1.1×	273 3.2×	9 0.1×	30 0.5×	7	336
Gay McCarron Australia	9	401 3.9×	33 0.4×	61 0.7×	25 0.3×	36 0.6×	13	620
A. Machlitt Germany	10	152 1.5×	71 0.8×	26 0.3×	9 0.1×	8 0.1×	13	424
P Aula Finland	9	139 1.3×	138 1.5×	47 0.6×	11 0.1×	4 0.1×	16	341
Guolin He China	9	142 1.4×	115 1.3×	9 0.1×	19 0.3×	39 0.7×	33	238
A Luger Austria	2	253 2.5×	208 2.3×	25 0.3×	8 0.1×	19 0.3×	2	298
Jokotade Adeleye Nigeria	8	27 0.3×	35 0.4×	13 0.2×	22 0.3×	16 0.3×	20	119
P Bottone Italy	8	213 2.1×	70 0.8×	34 0.4×	9 0.1×	9 0.1×	12	265

Countries citing papers authored by P.N. John

Since Specialization

Citations

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

Fields of papers citing papers by P.N. John

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by P.N. John. 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 P.N. John. The network helps show where P.N. John may publish in the future.

Co-authorship network of co-authors of P.N. John

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

All Works

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13 of 13 papers shown

John, P.N., et al.. (2020). Endangered health - opportunity with efficient innovations. 7(1). 11–14. 1 indexed citations

Hammer, Mette, P.N. John, M. D. Flynn, A. J. Bellingham, & Richard David Leslie. (1989). Glycated Fibrinogen: A New Index of Short-Term Diabetic Control. Annals of Clinical Biochemistry International Journal of Laboratory Medicine. 26(1). 58–62. 22 indexed citations

John, P.N., et al.. (1987). Haemoglobin A₁ and Congenital Malformation. Diabetic Medicine. 4(2). 156–159. 10 indexed citations

Rouyer-Fessard, P, Yves Beuzard, Michel Vidaud, P.N. John, & R.S. Mibashan. (1987). Prenatal diagnosis of β thalassaemia by reverse phase HPLC. Prenatal Diagnosis. 7(3). 171–178. 2 indexed citations

Boucher, Barbara J., J. M. Burrin, B J Gould, et al.. (1983). A collaborative study of the measurement of glycosylated haemoglobin by several methods in seven laboratories in the United Kingdom. Diabetologia. 24(4). 265–71. 34 indexed citations

Blouquit, Y., Yves Beuzard, Claude Chabret, et al.. (1982). Antenatal diagnosis of haemoglobinopathies by Biorex chromatography of haemoglobin. British Journal of Haematology. 50(1). 7–15. 9 indexed citations

Leslie, Richard David, et al.. (1981). Fetal macrosomia and maternal diabetic control in pregnancy.. BMJ. 282(6262). 439–440. 18 indexed citations

Perrine, R. P., P.N. John, Marcus Pembrey, & Susan P. Perrine. (1981). Sickle cell disease in Saudi Arabs in early childhood.. Archives of Disease in Childhood. 56(3). 187–192. 43 indexed citations

Leslie, Richard David, D A Pyke, P.N. John, & Jonathan M. L. White. (1979). How quickly can haemoglobin A1 increase?. BMJ. 2(6181). 19.1–19. 9 indexed citations

10.

Leslie, Richard David, P.N. John, D A Pyke, & Jonathan M. L. White. (1978). HÆMOGLOBIN A1 IN DIABETIC PREGNANCY. The Lancet. 312(8097). 958–959. 101 indexed citations

11.

John, P.N., et al.. (1974). Pregnancy in sickle-cell anemia in a Caucasian group. American Journal of Obstetrics and Gynecology. 118(1). 29–33. 13 indexed citations

12.

John, P.N.. (1971). A study of asymptomatic bacteriuria among the maternal care patients attending the maternal and child health clinic, Dhahran, Saudi Arabia. American Journal of Obstetrics and Gynecology. 111(1). 26–30. 2 indexed citations

13.

John, P.N.. (1970). STUDY OF PERINATAL AND INFANT DEATHS IN 1967 IN DHAHRAN, SAUDI ARABIA. Journal of Tropical Pediatrics. 16(2). 43–47. 7 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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