Ho‐Kei Ma

15 papers and 274 indexed citations i.

About

Ho‐Kei Ma is a scholar working on Public Health, Environmental and Occupational Health, Pediatrics, Perinatology and Child Health and Obstetrics and Gynecology. According to data from OpenAlex, Ho‐Kei Ma has authored 15 papers receiving a total of 274 indexed citations (citations by other indexed papers that have themselves been cited), including 6 papers in Public Health, Environmental and Occupational Health, 6 papers in Pediatrics, Perinatology and Child Health and 5 papers in Obstetrics and Gynecology. Recurrent topics in Ho‐Kei Ma’s work include Gestational Trophoblastic Disease Studies (4 papers), Pregnancy and preeclampsia studies (3 papers) and Sperm and Testicular Function (2 papers). Ho‐Kei Ma is often cited by papers focused on Gestational Trophoblastic Disease Studies (4 papers), Pregnancy and preeclampsia studies (3 papers) and Sperm and Testicular Function (2 papers). Ho‐Kei Ma collaborates with scholars based in Hong Kong, United States and United Kingdom. Ho‐Kei Ma's co-authors include Steven Y.W. Chan, S. J. Duthie, Gordon Yung, Lawrence C.H. Tang, L.C. Wong, J. S. K. Woo, Hys Ngan, Vivian Wong, J.W.M. Lawton and Pak‐Chung Ho and has published in prestigious journals such as American Journal of Obstetrics and Gynecology, International Journal of Radiation Oncology*Biology*Physics and Fertility and Sterility.

In The Last Decade

Co-authorship network of co-authors of Ho‐Kei Ma i

Fields of papers citing papers by Ho‐Kei Ma

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ho‐Kei Ma. 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 Ho‐Kei Ma. The network helps show where Ho‐Kei Ma may publish in the future.

Countries citing papers authored by Ho‐Kei Ma

Since Specialization
Citations

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

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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2025