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Hierarchical Cluster Analysis of Peripapillary Retinal Nerve Fiber Layer Damage and Macular Ganglion Cell Loss in Open Angle Glaucoma

Lee K, Bae HW, Lee SY, Seong GJ, Kim CY

PURPOSE: To categorize the structural progression pattern of glaucoma, as detected by optical coherence tomography guided progression analysis, with respect to the peripapillary retinal nerve fiber layer (RNFL) and macular...
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Molecular Characterization of 170 New gDNA-SSR Markers for Genetic Diversity in Button Mushroom (Agaricus bisporus)

An H, Jo IH, Oh YL, Jang KY, Kong WS, Sung JK, So YS, Chung JW

We designed 170 new simple sequence repeat (SSR) markers based on the whole-genome sequence data of button mushroom (Agaricus bisporus), and selected 121 polymorphic markers. A total of 121 polymorphic...
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The extension of the largest generalized-eigenvalue based distance metric D(ij)(γ₁) in arbitrary feature spaces to classify composite data points

Daoud M

Analyzing patterns in data points embedded in linear and non-linear feature spaces is considered as one of the common research problems among different research areas, for example: data mining, machine...
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Association between energy intake and skeletal muscle mass according to dietary patterns derived by cluster analysis: data from the 2008 ~ 2010 Korea National Health and Nutrition Examination Survey

Jang BY, Bu SY

PURPOSE: This study investigated major dietary patterns among healthy Korean adults using cluster analysis and analyzed the relationship between energy intake and skeletal muscle mass. METHODS: This study was conducted using...
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Clinical characteristics of intentional self-harm inpatient with lethal methods

Cha JH, Ahn ME, Kim DW, Lee SK, Lee CH, Kim SM, Kim JH, Kim HK, Han JH, Park KS

OBJECTIVE: The aim of this study was to identify the latent class, according to the risk factors, of the patients hospitalized due to intentional self-harm by lethal means. METHODS: The risk...
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Awareness and Utilization of Mobile Health and Preventive Health Behavior according to Cardiovascular Risk Factor Cluster Type in Early Middle-aged Male Workers

Kim EJ, Hwang SY

PURPOSE: This study was conducted to identify cardiovascular risk factor cluster types in early middle-aged male workers in their 30s and 40s, and to identify differences in awareness of mobile...
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Inflow and outflow type analysis of emergency department patients of the Honam region

Oh M, Jeon B, Lee J, Jeong T, Heo T

OBJECTIVE: This study examined the inflow and outflow patterns of emergency department patients with si-gun-gu in the Gwangju, Jeonbuk, and Jeonnam areas. METHODS: Data from the Gwangju, Jeonbuk, and Jeonnam were...
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Motherhood Ideology and Parenting Stress according to Parenting Behavior Patterns of Married Immigrant Women with Young Children

Moon SH, Kim M, Na H

PURPOSE: This study aims to provide base data for designing education and counseling programs for child-raising by identifying the types, characteristics and predictors of parenting behaviors of married immigrant women. METHODS:...
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Clustering and Switching Patterns in Semantic Fluency and Their Relationship to Working Memory in Mild Cognitive Impairment

Oh SJ, Sung JE, Choi SJ, Jeong JH

BACKGROUND AND PURPOSE: Semantic verbal fluency test is a neuropsychological assessment that can sensitively detect neuropathological changes. Considering its multifactorial features tapping various cognitive domains such as semantic memory, executive...
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Different Biological Pathways Are Up-regulated in the Elderly With Asthma: Sputum Transcriptomic Analysis

Kim BK, Lee HS, Sohn KH, Lee SY, Cho SH, Park HW

BACKGROUND: Elderly asthma (EA) is increasing, but the pathogenesis is unclear. This study aimed to identify EA-related biological pathways by analyzing genome-wide gene expression profiles in sputum cells. METHODS: A total...
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Clustering Effects of Metabolic Factors and the Risk of Metabolic Syndrome

Kim YJ, Hwang HR

BACKGROUND: Metabolic syndrome is a major risk factor for cardiovascular disease. Clustering of a combination of individual factors that increase the actual rather than the expected prevalence might be helpful...
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Multiscale Clustering and Profile Visualization of Malocclusion in Korean Orthodontic Patients: Cluster Analysis of Malocclusion

Jeong SR, Kim S, Kim SY, Lim SH

Understanding the classification of malocclusion is a crucial issue in Orthodontics. It can also help us to diagnose, treat, and understand malocclusion to establish a standard for definite class of...
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Pattern Analysis of Volume of Basal Ganglia Structures in Patients with First-Episode Psychosis

Min S, Lee TY, Kwak Y, Kwon JS

OBJECTIVES: Dopamine dysregulation has been regarded as one of the core pathologies in patients with schizophrenia. Since dopamine synthesis capacity has found to be inconsistent in patients with schizophrenia, current...
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Significance of Low-Attenuation Cluster Analysis on Quantitative CT in the Evaluation of Chronic Obstructive Pulmonary Disease

Nambu A, Zach J, Kim SS, Jin G, Schroeder , Kim YI, Bowler R, Lynch DA

OBJECTIVE: To assess clinical feasibility of low-attenuation cluster analysis in evaluation of chronic obstructive pulmonary disease (COPD). MATERIALS AND METHODS: Subjects were 199 current and former cigarette smokers that underwent CT...
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Molecular Epidemiology of Mycobacterium leprae as Determined by Structure-Neighbor Clustering in Korea found cases

Kim JP

BACKGROUND: It has proven challenging to investigate the molecular epidemiology of Mycobacterium leprae, the causative agent of leprosy, due to difficulties with culturing of the organism and a lack of...
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Allergen Sensitization Pattern by Sex: A Cluster Analysis in Korea

Ohn J, Paik SH, Doh EJ, Park HS, Yoon HS, Cho S

BACKGROUND: Allergens tend to sensitize simultaneously. Etiology of this phenomenon has been suggested to be allergen cross-reactivity or concurrent exposure. However, little is known about specific allergen sensitization patterns. OBJECTIVE: To...
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Clinical Characteristics of Exacerbation-Prone Adult Asthmatics Identified by Cluster Analysis

Kim MA, Shin SW, Park JS, Uh ST, Chang HS, Bae DJ, Cho YS, Park HS, Yoon HJ, Choi BW, Kim YH, Park CS

PURPOSE: Asthma is a heterogeneous disease characterized by various types of airway inflammation and obstruction. Therefore, it is classified into several subphenotypes, such as early-onset atopic, obese non-eosinophilic, benign, and...
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Prediction and visualization of CYP2D6 genotype-based phenotype using clustering algorithms

Kim EY, Shin SG, Shin JG

This study focused on the role of cytochrome P450 2D6 (CYP2D6) genotypes to predict phenotypes in the metabolism of dextromethorphan. CYP2D6 genotypes and metabolic ratios (MRs) of dextromethorphan were determined...
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Text Mining in Biomedical Domain with Emphasis on Document Clustering

Renganathan V

OBJECTIVES: With the exponential increase in the number of articles published every year in the biomedical domain, there is a need to build automated systems to extract unknown information from...
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Clustering of craniofacial patterns in Korean children with snoring

Anderson S, Lim HJ, Kim KB, Kim SW, Kim SJ

OBJECTIVE: The purpose of this study was to investigate whether the craniofacial patterns of Korean children with snoring and adenotonsillar hypertrophy (ATH) could be categorized into characteristic clusters according to...
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