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The quality of subgroup analyses in chronic pain randomized controlled trials: a methodological review

AminiLari M, Ashoorian V, Caldwell A, Rahman Y, Nieuwlaat R, Busse JW, Mbuagbaw L

The quality of subgroup analyses (SGAs) in chronic non-cancer pain trials is uncertain. The purpose of this study was to address this issue. We conducted a comprehensive search in MEDLINE...
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Conducting and Reporting a Clinical Research Using Korean Healthcare Claims Database

Kim S, Kim MS, You SH, Jung SY

An increasing number of studies are using healthcare claims databases to assess healthcare intervention utilization patterns or outcomes in real-world clinical settings. However, methodological issues affecting study design or data...
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Fundamental Shifts in Research, Ethics and Peer Review in the Era of the COVID-19 Pandemic

Barroga E, Matanguihan GJ

The era of the coronavirus disease 2019 (COVID-19) pandemic has led to fundamental shifts in research, ethics, and peer review including reframing of the research design, adapting methodologies to the...
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Pervasive Misclassification and Misconception of Study Designs in Asian Dermatology Journals Listed in Science Citation Index-Expanded

Choi S, Yoon HS

Background: Misclassification of study designs of journals can hinder the readers from assessing the strengths and weaknesses of the study and evaluating the applicability of the study in the real-world...
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How Annals of Dermatology Has Improved the Scientific Quality and Ethical Standards of its Articles in the Two-Year Period since October 2018

Huh S

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Correlation between GenoType MTBDRplus Assay and Phenotypic Susceptibility Test for Prothionamide in Patients with Genotypic Isoniazid Resistance

Lee JH, Jo KW, Shim TS

BACKGROUND: The purpose of this study was to analyze the relationship between the gene mutation patterns by the GenoType MTBDRplus (MTBDRplus) assay and the phenotypic drug susceptibility test (pDST) results...
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A Bibliometric Analysis on Tuberculosis Research of Korea from 1979 to 2017

Lee HW, Yim JJ

BACKGROUND: The prevalence, incidence, and mortality rates of tuberculosis (TB) have declined steadily in Korea since 1965. This study aimed to identify the characteristics and provide quantitative analysis of published...
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Specification of Subject Sex in Oncology-Related Animal Studies

Lee S, Kim WJ, Jeon Y, Lim CH, Sun K

BACKGROUND: Growing evidence for clinically significant differences between the sexes has attracted the attention of researchers. However, failures to report a test animal sex and balance the sex ratios of...
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The Analysis of Research Trends of Elderly in the Dental Hygiene Discipline

Goong HS, Seo K

The aim of this study was to identify bibliographic characteristics and research trends of articles published on the elderly people in dental hygiene. An analysis was done of 191 articles...
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Fostering critical thinking and collaborative learning skills among medical students through a research protocol writing activity in the curriculum

Sahoo S, Mohammed C

PURPOSE: This intervention was aimed to analyse the effect of academic writing and journal critiquing as educational approaches in improving critical thinking and collaborative learning among undergraduate medical students. METHODS: A...
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The Clinical Significance of Occult Gastrointestinal Primary Tumours in Metastatic Cancer: A Population Retrospective Cohort Study

Hannouf MB, Winquist E, Mahmud SM, Brackstone M, Sarma S, Rodrigues , Rogan PK, Hoch JS, Zaric GS

PURPOSE: The purpose of this study was to estimate the incidence of occult gastrointestinal (GI) primary tumours in patients with metastatic cancer of uncertain primary origin and evaluate their influence...
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Post-hoc simulation study of computerized adaptive testing for the Korean Medical Licensing Examination

Seo DG, Choi J

PURPOSE: Computerized adaptive testing (CAT) has been adopted in licensing examinations because it improves the efficiency and accuracy of the tests, as shown in many studies. This simulation study investigated...
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Experimental In-Vivo Models Used in Fat Grafting Research for Volume Augmentation in Soft Tissue Reconstruction

Lujan-Hernandez J, Appasani R, Sullivan K, Siegel-Reamer L, Lalikos JF

As the popularity of fat grafting research increases, animal models are being used as the source of pre-clinical experimental information for discovery and to enhance techniques. To date, animal models...
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Random allocation and dynamic allocation randomization

Kang H

Random allocation is commonly used in medical researches, and has become an essential part of designing clinical trials. It produces comparable groups with regard to known or unknown prognostic factors,...
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Research Designs and Statistical Methods Trends in the Annals of Rehabilitation Medicine

Kim J, Yoon S, Kang JJ, Han K, Kim JM, Kim SK

OBJECTIVE: To investigate trends of the research designs and statistical methods in the Annals of Rehabilitation Medicine (ARM) published from 2005 to 2015 through a comparison of articles with the...
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Recent Research Trends in Meta-analysis

Shin IS

The use of meta-analysis (MA), which is placed on top of the evidence hierarchy, in studies has been increasing exponentially. MA has three effect size families. Using the category of...
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Citation Discovery Tools for Conducting Adaptive Meta-analyses to Update Systematic Reviews

Bae JM, Kim EH

OBJECTIVES: The systematic review (SR) is a research methodology that aims to synthesize related evidence. Updating previously conducted SRs is necessary when new evidence has been produced, but no consensus...
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Clinicoepidemiological research designs in childhood allergic diseases

Yang HJ

Clinical epidemiology is defined as a method for investigating the distribution and determinants of diseases and for applying this knowledge in their prevention, and simply means application of epidemiological methods...
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Prognostic Scoring Index for Patients with Metastatic Pancreatic Adenocarcinoma

Park HS, Lee HS, Park JS, Park JS, Lee DK, Lee SJ, Yoon DS, Lee MG, Jeung HC

PURPOSE: This study focused on implementation of a prognostic scoring index based on clinico-laboratory parameters measured routinely on admission in metastatic pancreatic cancer patients. MATERIALS AND METHODS: Records from 403 patients...
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The influence of root surface distance to alveolar bone and periodontal ligament on periodontal wound healing

Montevecchi M, Parrilli A, Fini M, Gatto MR, Muttini A, Checchi L

PURPOSE: The purpose of this animal study was to perform a 3-dimensional micro-computed tomography (micro-CT) analysis in order to investigate the influence of root surface distance to the alveolar bone...
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