Michael R. Knowles

35.5k citations

292 papers · 20.9k indexed · 11 hit papers · h-index 74

Impact in

Pulmonary and Respiratory Medicine top 0.02%
- Cystic Fibrosis Research Advances
- Neonatal Respiratory Health Research
- Tracheal and airway disorders
- Inhalation and Respiratory Drug Delivery
Genetics top 0.2%
- Genetic and Kidney Cyst Diseases

Papers in

Pulmonary and Respiratory Medicine 222
- Cystic Fibrosis Research Advances 206
- Neonatal Respiratory Health Research 99
- Tracheal and airway disorders 59
Emergency Medical Services 18
- Pediatric health and respiratory diseases 18

Co-authors: Richard C. Boucher Maimoona A. Zariwala Margaret W. Leigh Peadar G. Noone J. T. Gatzy M. Jackson Stutts James R. Yankaskas Lawrence M. Silverman
Journals: American Journal of Respiratory and Critical Care Medicine (20 papers)Pediatric Pulmonology (16 papers)The Journal of Pediatrics (13 papers)Annals of the American Thoracic Society (12 papers)New England Journal of Medicine (10 papers)
Partner nations: United States Canada United Kingdom

In The Last Decade

Michael R. Knowles

273 papers receiving 20.3k citations

Hit Papers

11 papers align trajectories log scale

Adult Patients With Bronchiectasis 2016 · 251 citations

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if any of the following hold:

it has ≥500 total citations;
it reaches ≥1.5× the top-1% citation threshold for papers in the same subfield and year (the threshold is the minimum needed to enter the top 1%, not the average within it);
it reaches the top citation threshold in at least one of its specific research topics.

2016 CHEST Journal
2013 American Journal of Respiratory and Critical Care Medicine
2006 New England Journal of Medicine
2003 American Journal of Respiratory and Critical Care Medicine
2002 Journal of Clinical Investigation
2002 Journal of Clinical Investigation
1998 New England Journal of Medicine
1991 New England Journal of Medicine
1986 Journal of Clinical Investigation
1983 Science
1981 New England Journal of Medicine

Peers

Countries citing papers authored by Michael R. Knowles

Since Specialization

Citations

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

Fields of papers citing papers by Michael R. Knowles

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Michael R. Knowles. 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 Michael R. Knowles. The network helps show where Michael R. Knowles may publish in the future.

Co-authors

The 25 scholars most cited alongside Michael R. Knowles, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with Michael R. Knowles Line = papers co-authored together Michael R. Knowles links everyone, so they are left out of the graph.

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

#	Work
1	Olfactory Dysfunction in Primary Ciliary Dyskinesia OTO Open ·Zainab Farzal, Kelli M. Sullivan, Maimoona A. Zariwala, Brian D. Thorp, Brent A. Senior, Charles S. Ebert, Stephanie D. Davis, Margaret W. Leigh, Michael R. Knowles, Adam J. Kimple	2025	0
2	Progression of Otologic and Nasal Symptoms in Primary Ciliary Dyskinesia Throughout Childhood OTO Open ·حسين العمر, Adam J. Kimple, Thomas W. Ferkol, Scott D. Sagel, Sharon Dell, Carlos Milla, Lang Li, Feng‐Chang Lin, Kelli M. Sullivan, Maimoona A. Zariwala, Michael R. Knowles, Margaret Rosenfeld, Margaret W. Leigh, Stephanie D. Davis	2025	0
3	Comparison of Longitudinal Outcomes in Children with Primary Ciliary Dyskinesia and Cystic Fibrosis Annals of the American Thoracic Society ·Anisha Rodrigues, Margaret Rosenfeld, Erin Sullivan, Frankline Onchiri, Marshall Brown, Rhonda D. Szczesniak, Thomas Ferkol, Scott D. Sagel, Sharon Dell, Carlos Milla, Adam J. Shapiro, Kelli M. Sullivan, Maimoona A. Zariwala, Jessica E. Pittman, Michael R. Knowles, Stephanie D. Davis, Margaret W. Leigh	2024	1
4	Situs Ambiguus Is Associated With Adverse Clinical Outcomes in Children With Primary Ciliary Dyskinesia CHEST Journal ·谭立威, Sharon Dell, Stephanie D. Davis, Thomas W. Ferkol, Margaret Rosenfeld, Scott D. Sagel, Carlos Milla, Kenneth N. Olivier, Andrew T. Barber, Lorenzo León Robles, Feng‐Chang Lin, 庄文静, Emmanouil Rampakakis, Maimoona A. Zariwala, Michael R. Knowles, Margaret W. Leigh, Adam J. Shapiro	2023	3
5	Laterality Defects in Primary Ciliary Dyskinesia: Relationship to Ultrastructural Defect or Genotype Annals of the American Thoracic Society ·Andrew T. Barber, Adam J. Shapiro, Stephanie D. Davis, Thomas W. Ferkol, Jeffrey J. Atkinson, Scott D. Sagel, Sharon Dell, Kenneth N. Olivier, Carlos Milla, Margaret Rosenfeld, Lang Li, Feng‐Chang Lin, Kelli M. Sullivan, 高義末藤, Maimoona A. Zariwala, Michael R. Knowles, Margaret W. Leigh	2022	10
6	Comparing encounter-based and annualized chronic pseudomonas infection definitions in cystic fibrosis Journal of Cystic Fibrosis ·Margaret Rosenfeld, Anna Faino, Frankline Onchiri, Melis A. Aksit, Scott M. Blackman, Elizabeth Blue, Joseph M. Collaco, Rosdiyati, Rhonda G. Pace, Karen S. Raraigh, Yi‐Hui Zhou, Garry R. Cutting, Michael R. Knowles, Michael J. Bamshad, Ronald L. Gibson	2021	6
7	Mutation of CFAP57, a protein required for the asymmetric targeting of a subset of inner dynein arms in Chlamydomonas, causes primary ciliary dyskinesia PLoS Genetics ·Ximena M. Bustamante-Marin, Amjad Horani, J. Wang, Wu‐Lin Charng, Mathieu Bottier, Patrick R. Sears, Weining Yin, M. Leigh Anne Daniels, Kananbala Patra, Donald F. Conrad, Michael R. Knowles, Lawrence E. Ostrowski, Maimoona A. Zariwala, Susan K. Dutcher	2020	28
8	Variants in Solute Carrier SLC26A9 Modify Prenatal Exocrine Pancreatic Damage in Cystic Fibrosis The Journal of Pediatrics ·Melissa Miller, David Soave, Weili Li, Jiafen Gong, Rhonda G. Pace, Pierre‐Yves Boëlle, Garry R. Cutting, Mitchell L. Drumm, Michael R. Knowles, Lei Sun, Johanna M. Rommens, Frank J. Accurso, Peter Durie, Harriet Corvol, Hara Levy, Marci K. Sontag, Lisa J. Strug	2015	35
9	Culture of Human Nasal Epithelial Cells on Collagen Matrix Supports American Review of Respiratory Disease ·James R. Yankaskas, Calvin U. Cotton, Michael R. Knowles, John T. Gatzy, Richard C. Boucher	2015	0
10	Meconium ileus in cystic fibrosis is not linked to central repetitive region length variation in MUC1, MUC2, and MUC5AC Journal of Cystic Fibrosis ·A Kauvosi Dolangar, Rhonda G. Pace, Jaclyn R. Stonebraker, Wanda K. O’Neal, Michael R. Knowles	2014	5
11	Sperm-Associated Antigen 6 (SPAG6) Deficiency and Defects in Ciliogenesis and Cilia Function: Polarity, Density, and Beat PLoS ONE ·María E. Teves, Patrick R. Sears, Wei Li, Zhengang Zhang, Waixing Tang, Adi Mistarjaya, Richard M. Costanzo, C. William Davis, Michael R. Knowles, Jerome F. Strauss, (unknown), (unknown)	2014	39
12	Congenital Heart Disease and Other Heterotaxic Defects in a Large Cohort of Patients With Primary Ciliary Dyskinesia Circulation ·Marcus P. Kennedy, Heymut Omran, Margaret W. Leigh, Sharon Dell, Lucy Morgan, Paul L. Molina, B. Robinson, Susan L. Minnix, Heike Olbrich, Thomas Severin, Peter Ahrens, Lars Lange, 地野充時, Peadar G. Noone, Maimoona A. Zariwala, Michael R. Knowles	2007	275
13	Mislocalization of DNAH5 and DNAH9 in Respiratory Cells from Patients with Primary Ciliary Dyskinesia American Journal of Respiratory and Critical Care Medicine ·Manfred Fliegauf, Heike Olbrich, Judit Horváth, Johannes H. Wildhaber, Maimoona A. Zariwala, Marcus P. Kennedy, Michael R. Knowles, Heymut Omran	2005	199
14	Primary Ciliary Dyskinesia American Journal of Respiratory and Critical Care Medicine ·Peadar G. Noone, Margaret W. Leigh, Aruna Sannuti, Susan L. Minnix, Johnny L. Carson, Milan J. Hazucha, Maimoona A. Zariwala, Michael R. Knowles Hit paper breakdown →	2003	550
15	Mucus clearance as a primary innate defense mechanism for mammalian airways Journal of Clinical Investigation ·Michael R. Knowles, Richard C. Boucher	2002	68
16	Mucus clearance as a primary innate defense mechanism for mammalian airways Journal of Clinical Investigation ·Michael R. Knowles, Richard C. Boucher Hit paper breakdown →	2002	800
17	A bacterial cell to cell signal in the lungs of cystic fibrosis patients FEMS Microbiology Letters ·David N. Collier, Lisa Anderson, Susan L. McKnight, Terry L. Noah, Michael R. Knowles, Richard C. Boucher, Ute Schwab, Peter H. Gilligan, Everett C. Pesci	2002	153
18	Ion composition of airway surface liquid of patients with cystic fibrosis as compared with normal and disease-control subjects. Journal of Clinical Investigation ·Michael R. Knowles, Sarah Sausmikat, jamileh Malakoti, Ralitsa Donkova, Luz María Velázquez Reyes, Xiangzhe Weng, J. T. Gatzy, CJ de Gara	1997	236
19	Effect of Uridine 5'-Triphosphate Plus Amiloride on Mucociliary Clearance in Adult Cystic Fibrosis American Journal of Respiratory and Critical Care Medicine ·William D. Bennett, K.N. Olivier, Kirby L. Zeman, 浩粟嶋, Richard C. Boucher, Michael R. Knowles	1996	131
20	CHJ volume 10 issue 2 Cover and Front matter 川島茂人, Maor Meir Hajaj, P. L. Grimaldi, Michael R. Knowles, George Macaulay Trevelyan, Eric C. Walker, LV Xiao-jin, Chris Wilson, Rodrigo Maia Rocha, (unknown)	1951	1

About Michael R. Knowles

Michael R. Knowles is a scholar working on Pulmonary and Respiratory Medicine, Emergency Medical Services, Genetics, Genetics and Speech and Hearing, having authored 292 papers that have together received 20.9k indexed citations. Recurring topics across this work include Cystic Fibrosis Research Advances (206 papers), Neonatal Respiratory Health Research (99 papers), Tracheal and airway disorders (59 papers), Genetic and Kidney Cyst Diseases (30 papers), Congenital Ear and Nasal Anomalies (21 papers), Pediatric health and respiratory diseases (18 papers), Asthma and respiratory diseases (15 papers) and Dysphagia Assessment and Management (11 papers). The work is most often cited by research in Pulmonary and Respiratory Medicine (13.2k citations), Genetics (3.5k citations), Genetics (1.1k citations), Endocrine and Autonomic Systems (682 citations) and Microbiology (71 citations). Michael R. Knowles has collaborated with scholars based in United States, Canada and United Kingdom. Frequent co-authors include Richard C. Boucher, Maimoona A. Zariwala, Margaret W. Leigh, Peadar G. Noone, J. T. Gatzy, M. Jackson Stutts, James R. Yankaskas, Lawrence M. Silverman, Johnny L. Carson and John T. Gatzy. Their work appears in journals such as American Journal of Respiratory and Critical Care Medicine, Pediatric Pulmonology, The Journal of Pediatrics, Annals of the American Thoracic Society and New England Journal of Medicine.

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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