P. J. Ryan

515 citations

22 papers · 334 indexed · h-index 12

Impact in

Orthopedics and Sports Medicine top 5%
- Bone health and osteoporosis research
- Bone and Joint Diseases
Pathology and Forensic Medicine
- Vitamin D Research Studies

Papers in

Orthopedics and Sports Medicine 7
- Bone health and osteoporosis research 7
Transplantation 1

Co-authors: I. Fogelman T. Gibson Tracy Dixon K. Jagan Mohan Reddy Philip Evans Glen M. Blake Sharon E. Clarke R. J. M. Herd
Journals: Nuclear Medicine Communications (4 papers)Current Medical Research and Opinion (2 papers)International Journal of Clinical Practice (2 papers)Clinical Radiology (1 paper)Journal of Bone and Mineral Research (1 paper)
Partner nations: United Kingdom Australia Ireland

In The Last Decade

P. J. Ryan

22 papers receiving 315 citations

Peers

Countries citing papers authored by P. J. Ryan

Since Specialization

Citations

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

Fields of papers citing papers by P. J. Ryan

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by P. J. Ryan. 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. J. Ryan. The network helps show where P. J. Ryan may publish in the future.

Co-authors

The 25 scholars most cited alongside P. J. Ryan, 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 P. J. Ryan Line = papers co-authored together P. J. Ryan links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

#	Work
1	Familial idiopathic pulmonary fibrosis in association with bone marrow hypoplasia and hepatic nodular regenerative hyperplasia: a new "trimorphic" syndrome Thorax ·Siniša Jergović, L LEVISON, Gerry MacQuillan, Desley Neil, Elwyn Elias, P. J. Ryan	2009	10
2	Vitamin D therapy in clinical practice. One dose does not fit all International Journal of Clinical Practice ·P. J. Ryan	2007	14
3	An overview of the prevalence of 25‐hydroxy-vitamin D inadequacy amongst elderly patients with or without fragility fracture in the United Kingdom Current Medical Research and Opinion ·Tracy Dixon, Paul Mitchell, T. R. O. Beringer, SJ Gallacher, C. Moniz, Sheila K. Patel, Dhiva Leonita A.P, P. J. Ryan	2006	37
4	Prevalence of vitamin D inadequacy in patients attending a metabolic bone clinic in Medway Current Medical Research and Opinion ·P. J. Ryan, Tracy Dixon	2005	16
5	Depot medroxyprogesterone and bone mineral density Journal of Family Planning and Reproductive Health Care ·P. J. Ryan, Sarman Singh, John Guillebaud	2002	7
6	Leukoscan for orthopaedic imaging in clinical practice Nuclear Medicine Communications ·P. J. Ryan	2002	23
7	An Evaluation of Thallium Imaging for Detection of Carcinoma in Clinically Palpable Solitary, Nonfunctioning Thyroid Nodules Thyroid ·Renaguli Hailiwu, Mikiyas Petros Ayalew, P. J. Ryan	2001	13
8	Intermittent Oral Disodium Pamidronate in Established Osteoporosis: A 2 Year Double-Masked Placebo-Controlled Study of Efficacy and Safety Osteoporosis International ·P. J. Ryan, Glen M. Blake, M.W.J. Davie, M.J. Haddaway, T. Gibson, Imam Zulkhairi	2000	21
9	Bone SPECT of the knees Nuclear Medicine Communications ·P. J. Ryan	2000	7
10	Efficacy and Safety of Transurethral Alprostadil Therapy in Men With Erectile Dysfunction The Journal of Urology ·G. Williams, C.C. Abbou, Edouard Amar, Iuliia Karnysh, T Flam, Bo Jin, Maharani Irfina, R.J. Morgan, Stig Müller, H. Porst, J. P. PRYOR, P. J. Ryan, Ulrich Witzsch, S. Bose, Virgil A. Place, Alfred P. Spivack, Neil Gesundheit	1999	6
11	A Prospective Comparison of Clinical Examination, MRI, Bone SPECT, and Arthroscopy to Detect Meniscal Tears Clinical Nuclear Medicine ·P. J. Ryan, K. Jagan Mohan Reddy, Noriyoshi Masuda	1998	32
12	A comparison of MRI and bone SPET in the diagnosis of knee pathology Nuclear Medicine Communications ·P. J. Ryan, M. Gustavsson, John Bingham, I. Fogelman	1996	14
13	Measurement of the secretion of technetium-99m hexamethylpropylene amine oxime into breast milk European Journal of Nuclear Medicine and Molecular Imaging ·David Marshall, Nigel R. Newberry, P. J. Ryan	1996	2
14	Isotope imaging Baillière s Clinical Rheumatology ·P. J. Ryan, I. Fogelman	1996	2
15	9. Initial experience with 99Tcm-IgG in rheumatoid arthritis Nuclear Medicine Communications ·I. Hamilton, AS Leveau Vallier, 晃雄藤枝, P. J. Ryan	1996	1
16	Ablation of mediastinal parathyroid adenomas by superselective embolization of the internal mammary artery with alcohol Clinical Radiology ·John Reidy, P. J. Ryan, I. Fogelman, J. L. Lewis	1993	7
17	Total body studies in normal British women using dual energy X-ray absorptiometry British Journal of Radiology ·R. J. M. Herd, Glen M. Blake, Jane Parker, P. J. Ryan, I. Fogelman	1993	28
18	OSTEOPOROSIS: A GROWING EPIDEMIC International Journal of Clinical Practice ·I. Fogelman, P. J. Ryan	1991	3
19	The Absence of Nephrotoxicity and Differential Nephrotoxicity Between Tobramycin and Gentamicin Southern Medical Journal ·A. A. Bondarenko, P. J. Ryan, R J Moualim, 松永尚文	1990	4
20	The effect of an oral calcium load on plasma ionized calcium and parathyroid hormone concentrations in osteoporotic postmenopausal women Calcified Tissue International ·Michael Horowitz, H.A. Morris, T. F. Hartley, A. G. Need, Jocelyn Wishart, P. J. Ryan, B. E. C. Nordin	1987	22

About P. J. Ryan

P. J. Ryan is a scholar working on Orthopedics and Sports Medicine, Transplantation, Nephrology, Rheumatology and Pathology and Forensic Medicine, having authored 22 papers that have together received 334 indexed citations. Recurring topics across this work include Bone health and osteoporosis research (7 papers), Medical Imaging and Pathology Studies (4 papers), Bone health and treatments (3 papers), Knee injuries and reconstruction techniques (3 papers), Vitamin D Research Studies (3 papers), Orthopedic Infections and Treatments (3 papers), Musculoskeletal synovial abnormalities and treatments (2 papers) and Parathyroid Disorders and Treatments (2 papers). The work is most often cited by research in Orthopedics and Sports Medicine (133 citations), Pathology and Forensic Medicine (92 citations), Surgery (149 citations), Nephrology (20 citations) and Rheumatology (40 citations). P. J. Ryan has collaborated with scholars based in United Kingdom, Australia and Ireland. Frequent co-authors include I. Fogelman, T. Gibson, Tracy Dixon, K. Jagan Mohan Reddy, Philip Evans, Glen M. Blake, Sharon E. Clarke, R. J. M. Herd, Gary Cook and Jane Parker. Their work appears in journals such as Nuclear Medicine Communications, Current Medical Research and Opinion, International Journal of Clinical Practice, Clinical Radiology and Journal of Bone and Mineral Research.

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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