Research methods

Building rural health research capacity: protocol for a realist review
Christina Young, Christopher Patey, Paul Norman, Aswathy Geetha Manukumar, Dean B. Carson, Michelle Swab, Shabnam Asghari

BMJ Open May 2025, 15 (5) e093994; DOI: 10.1136/bmjopen-2024-093994
Investigation of trial registration as part of a research integrity assessment of randomised controlled trials in COVID-19 evidence syntheses: a meta-epidemiological study
Tamara Pscheidl, Florencia Weber, Emma Sydenham, Patrick Meybohm, Stephanie Weibel

BMJ Open May 2025, 15 (5) e092243; DOI: 10.1136/bmjopen-2024-092243
Adipose tissue-derived versus bone marrow-derived cell concentrates for the injective treatment of knee osteoarthritis: protocol of a prospective randomised controlled trial
Luca Andriolo, Francesca Veronesi, Lorenzo Zanasi, Viviana Costa, Marco Franceschini, Marco Miceli, Paolo Spinnato, Stefano Zaffagnini, Gianluca Giavaresi, Giuseppe Filardo

BMJ Open Apr 2025, 15 (4) e092379; DOI: 10.1136/bmjopen-2024-092379
Protocol for single-arm clinical trial evaluating medical grade polycaprolactone breast scaffold implantation with autologous fat grafting for breast implant revision and congenital defect correction surgery
Matthew Cheng, Gwenda Chapman, Michael Wagels, Owen Ung

BMJ Open Apr 2025, 15 (4) e088151; DOI: 10.1136/bmjopen-2024-088151
Surgical treatments of metastatic bone disease of the hip joint: a scoping review protocol
Li Mao, Jiling Liu, Zhenxiao Yang, Chiheng Yan, Dagang Feng

BMJ Open Apr 2025, 15 (4) e083406; DOI: 10.1136/bmjopen-2023-083406
Predictive modelling methods of hospital readmission risks for patients with chronic obstructive pulmonary disease (COPD): a systematic review protocol
Balkissa Tonde, Metogara Mohamed Traore, Paolo Landa, André Côté, Maude Laberge

BMJ Open Apr 2025, 15 (4) e093771; DOI: 10.1136/bmjopen-2024-093771
Designing and validating a patient education model for cardiovascular patients: protocol for a multilevel mixed-method study
Awat Yousefiazar, Akram Ghahramanian, Azad Rahmani, Hossein Feizollahzadeh, Mohammadreza Taban Sadeghi, Saeideh Ghaffarifar, Razieh Parizad

BMJ Open Apr 2025, 15 (4) e092234; DOI: 10.1136/bmjopen-2024-092234
Development and internal validation of an interpretable risk prediction model for diabetic peripheral neuropathy in type 2 diabetes: a single-centre retrospective cohort study in China
Lianhua Liu, Bo Bi, Mei Gui, Linli Zhang, Feng Ju, Xiaodan Wang, Li Cao

BMJ Open Apr 2025, 15 (4) e092463; DOI: 10.1136/bmjopen-2024-092463
Readability and complexity of written information presented to hospitalised patients for trial consent during the COVID-19 pandemic in the UK: a retrospective document analysis
Ewan Gourlay, Tim Felton, Mona Bafadhel, Christopher E Brightling, Jane C Davies, Rachael A Evans, Ling Pei Ho, Stefan J Marciniak, Nick A Maskell, Joanna Porter, Elizabeth Sapey, Salman Siddiqui, Samantha Walker, Tom Wilkinson, Alex Robert Horsley

BMJ Open Mar 2025, 15 (3) e089447; DOI: 10.1136/bmjopen-2024-089447
Accelerating implementation of visual key information to improve informed consent in research: a single-institution feasibility study and implementation testing
Angela Hill, Ashley J Housten, Krista Cooksey, Eliana Goldstein, Jessica Mozersky, Mary C Politi

BMJ Open Mar 2025, 15 (3) e092185; DOI: 10.1136/bmjopen-2024-092185

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