Martin Ja

9 total papers · 1.1k total citations
7 papers, 955 citations indexed

About

Martin Ja is a scholar working on Pediatrics, Perinatology and Child Health, General Health Professions and Economics and Econometrics. According to data from OpenAlex, Martin Ja has authored 7 papers receiving a total of 955 indexed citations (citations by other indexed papers that have themselves been cited), including 6 papers in Pediatrics, Perinatology and Child Health, 2 papers in General Health Professions and 2 papers in Economics and Econometrics. Recurrent topics in Martin Ja’s work include Assisted Reproductive Technology and Twin Pregnancy (5 papers), Global Maternal and Child Health (4 papers) and Healthcare Policy and Management (2 papers). Martin Ja is often cited by papers focused on Assisted Reproductive Technology and Twin Pregnancy (5 papers), Global Maternal and Child Health (4 papers) and Healthcare Policy and Management (2 papers). Martin Ja collaborates with scholars based in and . Martin Ja's co-authors include Ventura Sj, Peter Drake, Fay Menacker, Maria Francesca Moro and Stuart C. Clarke and has published in prestigious journals such as PubMed.

Co-authorship network of co-authors of Martin Ja

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

Martin Ja

7 papers receiving 898 citations

Fields of papers citing papers by Martin Ja

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Martin Ja. 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 Martin Ja. The network helps show where Martin Ja may publish in the future.

Countries citing papers authored by Martin Ja

Since Specialization
Citations

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

Explore authors with similar magnitude of impact

Rankless by CCL
2026