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.
Design and analysis of randomized clinical trials requiring prolonged observation of each patient. II. Analysis and examples
This map shows the geographic impact of P. Armitage'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. Armitage with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites P. Armitage more than expected).
This network shows the impact of papers produced by P. Armitage. 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. Armitage. The network helps show where P. Armitage may publish in the future.
Co-authorship network of co-authors of P. Armitage
This figure shows the co-authorship network connecting the top 25 collaborators of P. Armitage.
A scholar is included among the top collaborators of P. Armitage 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. Armitage. P. Armitage is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Koopman, Siem Jan, et al.. (1998). Kalman filtering and smoothing. Data Archiving and Networked Services (DANS).3 indexed citations
3.
Armitage, P. & H. A. David. (1996). Advances in biometry : 50 years of the International Biometric Society. Wiley eBooks.7 indexed citations
4.
George, Stephanie M., John Crowley, S S Ellenberg, et al.. (1993). Discussion: Stephen George, a survey of monitoring practices in cancer clinical trials: Stephanie Green and John Crowley, data monitoring committees for Southwest Oncology Group clinical trials. Statistics in Medicine. 12. 457–459.2 indexed citations
5.
Armitage, P.. (1992). Religious Ideology Among the Innu of Eastern Quebec and Labrador. 6. 63–63.28 indexed citations
6.
Armitage, P.. (1992). Bradford Hill and the randomized controlled trial. 6(1). 23–37.11 indexed citations
7.
Armitage, P., et al.. (1991). The Innu (the Montagnais-Naskapi).2 indexed citations
8.
Armitage, P.. (1987). The planning of statistical investigation : the planning of surveys. Statistical Methods in Medical Research.1 indexed citations
Armitage, P., et al.. (1970). The National Halothane Study. Revue de l Institut International de Statistique / Review of the International Statistical Institute. 38(1). 185–185.22 indexed citations
Smith, Chris, Lori Turner, & P. Armitage. (1962). Yellow fever vaccination in Malaya by subcutaneous injection and multiple puncture. Neutralizing antibody responses in persons with and without pre-existing antibody to related viruses.. PubMed. 27. 717–27.16 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.