Citation Rankings (Highly Cited Researchers) 2024 and list of influential and most cited researchers in Agriculture and Forestry, Architecture and Design, Business and Management, Economics and Econometrics, Education, Engineering and Technology, History, Philosophy, Theology, Law, Medicine and Health Sciences, Natural Sciences and Social Sciences and their 256 sub-branches is a unique service offered only by “AD Scientific Index”. You can see the most cited and influential researchers in the country and region. See also for more specific citation analyses: "last 6 years citation index" Universities Rankings 2024 (Sort by: Total Citations) and Universities Rankings 2024 (Sort by : Last 6 Years Citations)
![Vania Naomi Hirakata](/user/assets/images/profile/no-profile-photo.png)
Biostatistics
Epidemiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,461
2,496
0.386
![Patricia Ziegelmann](https://cdn.adscientificindex.com/pictures/47/1080055.jpg)
Sobrevivencia
Cancer
Bioestatística
Metanálise
Avaliação de Tecnologias em Saúde
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,958
2,556
0.864
Vania Naomi Hirakata
Universidade Federal do Rio Grande do Sul UFRGS
Porto Alegre, Brazil
![Brazil](/flags/br.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,461
2,496
0.386
Biostatistics
Epidemiology
Patricia Ziegelmann
Universidade Federal do Rio Grande do Sul UFRGS
Porto Alegre, Brazil
![Brazil](/flags/br.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,958
2,556
0.864
Sobrevivencia
Cancer
Bioestatística
Metanálise
Avaliação de Tecnologias em Saúde