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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Social Sciences and Humanities 45 3852 3552 1832 1658 196 9279

Charles P. Friedman publications per year

The chart shows the history of publications by Charles P. Friedman between 1971 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Charles P. Friedman published across 55 years, from 1971 to 2025, averaging 4.6 papers a year. Output peaked at 22 publications in 2022. 10 of the 251 publications appeared in the last two years.

No. of publications
5 10 15 20
Bar chart. Horizontal axis: year, 1971 to 2025. Vertical axis: number of publications, 0 to 22. Peak 22 publications in 2022. 1971: 1 publication 1972: 1 publication 1973: 1 publication 1974: 2 publications 1975: 0 publications 1976: 2 publications 1977: 0 publications 1978: 4 publications 1979: 3 publications 1980: 5 publications 1981: 3 publications 1982: 3 publications 1983: 3 publications 1984: 1 publication 1985: 2 publications 1986: 2 publications 1987: 2 publications 1988: 3 publications 1989: 2 publications 1990: 2 publications 1991: 6 publications 1992: 5 publications 1993: 5 publications 1994: 9 publications 1995: 5 publications 1996: 9 publications 1997: 14 publications 1998: 7 publications 1999: 11 publications 2000: 6 publications 2001: 7 publications 2002: 4 publications 2003: 3 publications 2004: 1 publication 2005: 4 publications 2006: 1 publication 2007: 0 publications 2008: 2 publications 2009: 2 publications 2010: 3 publications 2011: 0 publications 2012: 3 publications 2013: 8 publications 2014: 8 publications 2015: 5 publications 2016: 6 publications 2017: 5 publications 2018: 7 publications 2019: 8 publications 2020: 5 publications 2021: 9 publications 2022: 22 publications 2023: 9 publications 2024: 7 publications 2025: 3 publications
1971 2025

251 publications in total across all disciplines

View publications per year as a table
Charles P. Friedman: publications per year, 1971 to 2025
Year Publications
1971 1
1972 1
1973 1
1974 2
1975 0
1976 2
1977 0
1978 4
1979 3
1980 5
1981 3
1982 3
1983 3
1984 1
1985 2
1986 2
1987 2
1988 3
1989 2
1990 2
1991 6
1992 5
1993 5
1994 9
1995 5
1996 9
1997 14
1998 7
1999 11
2000 6
2001 7
2002 4
2003 3
2004 1
2005 4
2006 1
2007 0
2008 2
2009 2
2010 3
2011 0
2012 3
2013 8
2014 8
2015 5
2016 6
2017 5
2018 7
2019 8
2020 5
2021 9
2022 22
2023 9
2024 7
2025 3
Total 251
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Charles P. Friedman publication distribution in Social Sciences and Humanities in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Social Sciences and Humanities in 2026. The highlighted bar marks where Charles P. Friedman sits on this spectrum.

No. of scientists
100 200 300 400
Bar chart with 54 bars. Horizontal axis: publications, 44–53 to 570+. Vertical axis: number of scientists, 0 to 474. Most scientists, 474, have 114–123 publications. The last bar groups every scientist with 570 publications or more. The highlighted bar, 194–203 publications, is where this scientist sits. 44–53 publications: 28 scientists 54–63 publications: 61 scientists 64–73 publications: 161 scientists 74–83 publications: 225 scientists 84–93 publications: 301 scientists 94–103 publications: 390 scientists 104–113 publications: 406 scientists 114–123 publications: 474 scientists 124–133 publications: 453 scientists 134–143 publications: 434 scientists 144–153 publications: 407 scientists 154–163 publications: 411 scientists 164–173 publications: 391 scientists 174–183 publications: 313 scientists 184–193 publications: 319 scientists 194–203 publications: 304 scientists 204–213 publications: 285 scientists 214–223 publications: 246 scientists 224–233 publications: 213 scientists 234–243 publications: 170 scientists 244–253 publications: 167 scientists 254–263 publications: 162 scientists 264–273 publications: 138 scientists 274–283 publications: 138 scientists 284–293 publications: 113 scientists 294–303 publications: 106 scientists 304–313 publications: 95 scientists 314–323 publications: 101 scientists 324–333 publications: 81 scientists 334–343 publications: 69 scientists 344–353 publications: 56 scientists 354–363 publications: 36 scientists 364–373 publications: 42 scientists 374–383 publications: 41 scientists 384–393 publications: 44 scientists 394–403 publications: 27 scientists 404–413 publications: 30 scientists 414–423 publications: 20 scientists 424–433 publications: 29 scientists 434–443 publications: 29 scientists 444–453 publications: 25 scientists 454–463 publications: 19 scientists 464–473 publications: 21 scientists 474–483 publications: 11 scientists 484–493 publications: 17 scientists 494–503 publications: 7 scientists 504–513 publications: 6 scientists 514–523 publications: 12 scientists 524–533 publications: 10 scientists 534–543 publications: 7 scientists 544–553 publications: 6 scientists 554–563 publications: 12 scientists 564–569 publications: 8 scientists 570+ publications: 100 scientists
44–53 publications 570+

This scientist: 196 publications — 63rd percentile

63% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 570 publications or more.

View publications distribution as a table
Number of Social Sciences and Humanities scientists by publication count, Research.com 2026 ranking edition. Based on 7,777 ranked scientists.
Publications Scientists This scientist
44–53 28
54–63 61
64–73 161
74–83 225
84–93 301
94–103 390
104–113 406
114–123 474
124–133 453
134–143 434
144–153 407
154–163 411
164–173 391
174–183 313
184–193 319
194–203 304 196
204–213 285
214–223 246
224–233 213
234–243 170
244–253 167
254–263 162
264–273 138
274–283 138
284–293 113
294–303 106
304–313 95
314–323 101
324–333 81
334–343 69
344–353 56
354–363 36
364–373 42
374–383 41
384–393 44
394–403 27
404–413 30
414–423 20
424–433 29
434–443 29
444–453 25
454–463 19
464–473 21
474–483 11
484–493 17
494–503 7
504–513 6
514–523 12
524–533 10
534–543 7
544–553 6
554–563 12
564–569 8
570+ 100
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Charles P. Friedman D-index placement in Social Sciences and Humanities in 2026

The chart shows the D-index (discipline H-index) distribution of Social Sciences and Humanities scientists ranked by Research.com in 2026. The highlighted bar marks where Charles P. Friedman sits on this spectrum.

No. of scientists
100 200 300
Bar chart with 71 bars. Horizontal axis: D-Index, 30 to 100+. Vertical axis: number of scientists, 0 to 313. Most scientists, 313, have 42 D-Index. The last bar groups every scientist with 100 D-Index or more. The highlighted bar, 45 D-Index, is where this scientist sits. 30 D-Index: 177 scientists 31 D-Index: 210 scientists 32 D-Index: 222 scientists 33 D-Index: 188 scientists 34 D-Index: 181 scientists 35 D-Index: 243 scientists 36 D-Index: 261 scientists 37 D-Index: 272 scientists 38 D-Index: 278 scientists 39 D-Index: 300 scientists 40 D-Index: 297 scientists 41 D-Index: 308 scientists 42 D-Index: 313 scientists 43 D-Index: 300 scientists 44 D-Index: 269 scientists 45 D-Index: 260 scientists 46 D-Index: 228 scientists 47 D-Index: 251 scientists 48 D-Index: 203 scientists 49 D-Index: 186 scientists 50 D-Index: 187 scientists 51 D-Index: 166 scientists 52 D-Index: 138 scientists 53 D-Index: 141 scientists 54 D-Index: 131 scientists 55 D-Index: 137 scientists 56 D-Index: 109 scientists 57 D-Index: 129 scientists 58 D-Index: 95 scientists 59 D-Index: 105 scientists 60 D-Index: 106 scientists 61 D-Index: 86 scientists 62 D-Index: 94 scientists 63 D-Index: 77 scientists 64 D-Index: 79 scientists 65 D-Index: 59 scientists 66 D-Index: 68 scientists 67 D-Index: 51 scientists 68 D-Index: 49 scientists 69 D-Index: 40 scientists 70 D-Index: 43 scientists 71 D-Index: 40 scientists 72 D-Index: 50 scientists 73 D-Index: 46 scientists 74 D-Index: 43 scientists 75 D-Index: 45 scientists 76 D-Index: 45 scientists 77 D-Index: 30 scientists 78 D-Index: 25 scientists 79 D-Index: 31 scientists 80 D-Index: 29 scientists 81 D-Index: 18 scientists 82 D-Index: 21 scientists 83 D-Index: 26 scientists 84 D-Index: 15 scientists 85 D-Index: 15 scientists 86 D-Index: 19 scientists 87 D-Index: 19 scientists 88 D-Index: 12 scientists 89 D-Index: 7 scientists 90 D-Index: 19 scientists 91 D-Index: 20 scientists 92 D-Index: 13 scientists 93 D-Index: 9 scientists 94 D-Index: 13 scientists 95 D-Index: 8 scientists 96 D-Index: 7 scientists 97 D-Index: 6 scientists 98 D-Index: 6 scientists 99 D-Index: 6 scientists 100+ D-Index: 97 scientists
30 D-Index 100+

This scientist: 45 D-Index — 52nd percentile

52% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 100 D-Index or more.

View D-Index distribution as a table
Number of Social Sciences and Humanities scientists by D-index, Research.com 2026 ranking edition. Based on 7,777 ranked scientists.
D-Index Scientists This scientist
30 177
31 210
32 222
33 188
34 181
35 243
36 261
37 272
38 278
39 300
40 297
41 308
42 313
43 300
44 269
45 260 45
46 228
47 251
48 203
49 186
50 187
51 166
52 138
53 141
54 131
55 137
56 109
57 129
58 95
59 105
60 106
61 86
62 94
63 77
64 79
65 59
66 68
67 51
68 49
69 40
70 43
71 40
72 50
73 46
74 43
75 45
76 45
77 30
78 25
79 31
80 29
81 18
82 21
83 26
84 15
85 15
86 19
87 19
88 12
89 7
90 19
91 20
92 13
93 9
94 13
95 8
96 7
97 6
98 6
99 6
100+ 97
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Overview

Charles P. Friedman is affiliated with the University of Michigan-Ann Arbor in the United States. Their research focuses primarily on health professions and medicine, with a significant number of publications in general health professions, health information management, emergency medicine, public health, environmental and occupational health, and information systems.

Their work addresses several specific topics, including electronic health records systems, health sciences research and education, health policy implementation science, cardiac arrest and resuscitation, biomedical text mining and ontologies, scientific computing and data management, and primary care and health outcomes.

Recent publications by Charles P. Friedman include the following papers:

  • What is unique about learning health systems? (2022) published in Learning Health Systems
  • Use of electronic health records to support a public health response to the COVID-19 pandemic in the United States: a perspective from 15 academic medical centers (2020) published in Journal of the American Medical Informatics Association
  • Should electronic differential diagnosis support be used early or late in the diagnostic process? A multicentre experimental study of Isabel (2021) published in BMJ Quality & Safety
  • Addressing the Covid-19 pandemic and future public health challenges through global collaboration and a data-driven systems approach (2020) published in Learning Health Systems
  • Improving diagnostic performance through feedback: the Diagnosis Learning Cycle (2021) published in BMJ Quality & Safety

Frequent co-authors include Jeremy C Wyatt, Joan S. Ash, Zach Landis-Lewis, Allen Flynn, and Amanda L. Missel.

Charles P. Friedman's research is often published in venues such as UNC Libraries, Learning Health Systems, Journal of the American Medical Informatics Association, Research Ideas and Outcomes, and BMJ Quality & Safety.

In addition to journal articles, Friedman has contributed to book publications in the field of health informatics, including Evaluation Methods in Biomedical and Health Informatics (2022).

Best Publications

  • Evaluation Methods in Biomedical Informatics

    Charles P. Friedman;J. Wyatt;Edward Hance Shortliffe

  • Evaluation Methods in Biomedical Informatics (Health Informatics)

    Charles P. Friedman;Jeremy C. Wyatt

  • Evaluation Methods in Medical Informatics

    Charles P. Friedman;Jeremy C. Wyatt

  • Achieving a Nationwide Learning Health System

    Charles P. Friedman;Adam K. Wong;David Blumenthal

  • Toward a science of learning systems: a research agenda for the high-functioning Learning Health System

    Charles P. Friedman;Joshua C. Rubin;Jeffrey S. Brown;Melinda Buntin

  • Enhancement of clinicians' diagnostic reasoning by computer-based consultation: a multisite study of 2 systems.

    Charles P. Friedman;Arthur S. Elstein;Fredric M. Wolf;Gwendolyn C. Murphy

  • Development of Visual Diagnostic Expertise in Pathology: An Information-processing Study

    Rebecca S. Crowley;Gregory J. Naus;Jimmie Stewart;Charles P. Friedman

  • Factors associated with successful answering of clinical questions using an information retrieval system

    William R. Hersh;M. Katherine Crabtree;David H. Hickam;Lynetta Sacherek

  • Do physicians know when their diagnoses are correct? Implications for decision support and error reduction.

    Charles P. Friedman;Guido G. Gatti;Timothy M. Franz;Gwendolyn C. Murphy

  • A “Fundamental Theorem” of Biomedical Informatics

    Charles P. Friedman

  • Development and initial validation of an instrument to measure physicians' use of, knowledge about, and attitudes toward computers

    Randy D. Cork;William M. Detmer;Charles P. Friedman

  • Charting the winds of change: evaluating innovative medical curricula.

    Charles P. Friedman;Ruth de Bliek;David S. Greer;Stewart P. Mennin

  • Toward an Information Infrastructure for Global Health Improvement.

    C. P. Friedman;J. C. Rubin;K. J. Sullivan

  • The research we should be doing.

    Charles P. Friedman

  • Designing Medical Informatics Research and Library—Resource Projects to Increase What Is Learned

    William W. Stead;R. Brian Haynes;Sherrilynne S. Fuller;Charles P. Friedman

  • The Attending Physician as Teacher

    William D. Mattern;Donn Weinholtz;Charles P. Friedman

  • Medical errors as a result of specialization

    Ahmad Hashem;Michelene T. H. Chi;Charles P. Friedman

  • An Analysis of Frameworks for Research on Innovation and Change in Higher Education

    David D. Dill;Charles P. Friedman

  • The science of Learning Health Systems: Foundations for a new journal.

    Charles P. Friedman;Nancy J. Allee;Brendan C. Delaney;Allen J. Flynn

  • Toward an informatics research agenda: key people and organizational issues.

    Bonnie Kaplan;Patricia Flatley Brennan;Alan F. Dowling;Charles P. Friedman

Frequent Co-Authors

Jeremy C Wyatt
Jeremy C Wyatt University of Southampton
Paul V. A. Fine
Paul V. A. Fine University of California, Berkeley
Carl Lagoze
Carl Lagoze University of Michigan–Ann Arbor
Brahmajee K. Nallamothu
Brahmajee K. Nallamothu University of Michigan–Ann Arbor
Aziz Sheikh
Aziz Sheikh University of Oxford
Lucila Ohno-Machado
Lucila Ohno-Machado University of California, San Diego
Kevin Sullivan
Kevin Sullivan University of Virginia
Isaac S. Kohane
Isaac S. Kohane Harvard University
Julia Adler-Milstein
Julia Adler-Milstein University of California, San Francisco
David Blumenthal
David Blumenthal Harvard University

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