P.L. Yap

4.6k total citations · 1 hit paper
55 papers, 3.7k citations indexed

About

P.L. Yap is a scholar working on Hepatology, Epidemiology and Immunology. According to data from OpenAlex, P.L. Yap has authored 55 papers receiving a total of 3.7k indexed citations (citations by other indexed papers that have themselves been cited), including 19 papers in Hepatology, 18 papers in Epidemiology and 13 papers in Immunology. Recurrent topics in P.L. Yap's work include Hepatitis C virus research (18 papers), Hepatitis B Virus Studies (14 papers) and Immunodeficiency and Autoimmune Disorders (10 papers). P.L. Yap is often cited by papers focused on Hepatitis C virus research (18 papers), Hepatitis B Virus Studies (14 papers) and Immunodeficiency and Autoimmune Disorders (10 papers). P.L. Yap collaborates with scholars based in United Kingdom, Nigeria and Saudi Arabia. P.L. Yap's co-authors include Peter Simmonds, F. McOmish, Edward C. Holmes, Shiu‐Wan Chan, Janice A. Kolberg, M. S. Urdea, Tai‐An Cha, Eileen L. Beall, Bruce Irvine and B. C. Dow and has published in prestigious journals such as The Lancet, Gastroenterology and JNCI Journal of the National Cancer Institute.

In The Last Decade

P.L. Yap

54 papers receiving 3.6k citations

Hit Papers

Classification of hepatit... 1993 2026 2004 2015 1993 250 500 750 1000
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. Classification of hepatitis C virus into six major genotypes and a series of subtypes by phylogenetic analysis of the NS-5 region
    1993 1.2k citations Peter Simmonds, Bruce Irvine et al. Journal of General Virology profile →

Author Peers

Peers are selected by citation overlap in the author's most active subfields. citations · hero ref

Author Last Decade Papers Cites
P.L. Yap 3.2k 2.8k 463 378 302 55 3.7k
F. McOmish 3.8k 1.2× 3.2k 1.2× 775 1.7× 441 1.2× 356 1.2× 24 4.3k
Qui-Lim Choo 2.9k 0.9× 2.4k 0.8× 186 0.4× 557 1.5× 278 0.9× 12 3.1k
Michael Roggendorf 2.3k 0.7× 1.9k 0.7× 540 1.2× 510 1.3× 267 0.9× 76 3.0k
Vicente Carréño 2.8k 0.9× 2.6k 0.9× 323 0.7× 139 0.4× 409 1.4× 117 3.6k
F. Lunel 2.2k 0.7× 2.1k 0.7× 294 0.6× 150 0.4× 397 1.3× 101 3.3k
Cyrille Féray 5.0k 1.6× 4.3k 1.5× 457 1.0× 131 0.3× 210 0.7× 153 5.9k
H. J. Alter 1.5k 0.5× 1.5k 0.5× 350 0.8× 308 0.8× 155 0.5× 36 2.2k
Harvey J. Alter 1.9k 0.6× 1.7k 0.6× 329 0.7× 175 0.5× 154 0.5× 7 2.4k
Valérie Thiers 3.7k 1.2× 3.6k 1.3× 517 1.1× 85 0.2× 316 1.0× 91 4.6k
Eiji Mita 2.4k 0.7× 2.0k 0.7× 196 0.4× 206 0.5× 480 1.6× 120 3.3k

Countries citing papers authored by P.L. Yap

Since Specialization
Citations

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

Fields of papers citing papers by P.L. Yap

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of P.L. Yap

This figure shows the co-authorship network connecting the top 25 collaborators of P.L. Yap. A scholar is included among the top collaborators of P.L. Yap 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.L. Yap. P.L. Yap 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.
Davidson, Fordyce A., C. D. L. Lycett, Donald M. McDonald, et al.. (1998). Prevalence, Incidence, and Clinical Characteristics of Hepatitis G Virus/GB Virus C Infection in Scottish Blood Donors. The Journal of Infectious Diseases. 178(6). 1779–1782. 36 indexed citations
2.
Smith, D. B., Fordyce A. Davidson, P.L. Yap, et al.. (1996). Levels of Hepatitis C Virus in Blood Donors Infected with Different Viral Genotypes. The Journal of Infectious Diseases. 173(3). 727–730. 43 indexed citations
3.
Mellor, J., et al.. (1995). Investigation of the pattern of hepatitis C virus sequence diversity in different geographical regions: implications for virus classification. Journal of General Virology. 76(10). 2493–2507. 239 indexed citations
4.
Simmonds, Peter, D. B. Smith, F. McOmish, et al.. (1994). Identification of Genotypes of Hepatitis C Virus by Sequence Comparisons in the Core, E1 and NS-5 Regions. Journal of General Virology. 75(5). 1053–1061. 222 indexed citations
5.
Ayob, Yasmin, et al.. (1994). Risk of hepatitis C in patients who received blood from donors subsequently shown to be carriers of hepatitis C virus. Transfusion Medicine. 4(4). 269–272. 22 indexed citations
6.
McOmish, F., P.L. Yap, Peter Simmonds, & Harvi F. Hart. (1993). DETECTION OF HEPATITIS-A VIRUS (HAV) IN COAGULATION-FACTOR CONCENTRATES USING THE POLYMERASE CHAIN-REACTION. Thrombosis and Haemostasis. 69. 939–939. 2 indexed citations
7.
Simmonds, Peter, F. McOmish, P.L. Yap, et al.. (1993). Sequence variability in the 5' non-coding region of hepatitis C virus: identification of a new virus type and restrictions on sequence diversity. Journal of General Virology. 74(4). 661–668. 380 indexed citations
8.
Simmonds, Peter, Bruce Irvine, P.L. Yap, et al.. (1993). Classification of hepatitis C virus into six major genotypes and a series of subtypes by phylogenetic analysis of the NS-5 region. Journal of General Virology. 74(11). 2391–2399. 1176 indexed citations breakdown →
9.
10.
Chan, Shiu‐Wan, F. McOmish, Edward C. Holmes, et al.. (1992). Analysis of a new hepatitis C virus type and its phylogenetic relationship to existing variants. Journal of General Virology. 73(5). 1131–1141. 372 indexed citations
11.
Ross, William, et al.. (1990). Prostaglandin E2production by rat peritoneal macrophages: role of cellular and humoral factors in vivo in transfusion-associated immunosuppression. FEMS Microbiology Letters. 64(5-6). 321–325. 3 indexed citations
12.
Ross, William & P.L. Yap. (1990). Blood transfusion and organ transplantation. Blood Reviews. 4(4). 252–258. 17 indexed citations
13.
Simmonds, Peter, Selma Rebus, G. Leadbetter, et al.. (1990). Hepatitis C quantification and sequencing in blood products, haemophiliacs, and drug users. The Lancet. 336(8729). 1469–1472. 185 indexed citations
14.
Dawes, J., et al.. (1988). Release of Highly-Sulphated Glycosaminoglycans and Histamine from Human Basophils. International Archives of Allergy and Immunology. 86(3). 261–266. 7 indexed citations
15.
Yap, P.L., et al.. (1988). Plasma levels of highly sulphated glycosaminoglycans are raised in patients with chronic myeloid leukaemia. British Journal of Haematology. 70(1). 27–29. 4 indexed citations
16.
Yap, P.L. & P Williams. (1988). Immunoglobulin Preparations for HIV‐Infected Patients. Vox Sanguinis. 55(2). 65–74. 12 indexed citations
17.
Yap, P.L., et al.. (1987). Circulating Basophil Counts in Atopic Individuals. International Archives of Allergy and Immunology. 84(4). 424–426. 12 indexed citations
18.
Perry, Rachel J., et al.. (1987). The viral safety of intravenous immunoglobulin. Journal of Infection. 15(2). 125–133. 29 indexed citations
19.
Yap, P.L., A. D. B. Harrower, Neil Davidson, & J.A. Strong. (1977). Glibenclamide and syndrome of inappropriate secretion of antidiuretic hormone.. BMJ. 1(6069). 1137.1–1137. 1 indexed citations
20.
Harrower, A. D. B., P.L. Yap, & N. C. Allan. (1976). Coagulation studies in patients treated with bromocriptine.. BMJ. 2(6027). 109.5–110. 1 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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