Choong Won Lee

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PURPOSE We estimated the incidence of cancer in Korea. MATERIALS AND METHODS The indicence of cancer was estimated using national mortality data, and the incidence data from four frontier regional cancer registries, including Kangwha, Seoul, Busan and Deagu. These four registries served a population about seventeen million, which is almost 38% of entire(More)
PURPOSE Since the revised Cancer Act of October 2006, cancer registration was reactivated, based on the Statistics Law. MATERIALS AND METHODS The incidence of cancer during 2002 was calculated on the basis of the information available from the National Cancer Incidence Database. Crude and age-standardized rates were calculated by gender for 18 age groups(More)
In many clinical situations which cause thymic involution and thereby result in immune deficiency, T cells are the most often affected, leading to a prolonged deficiency of T cells. Since only the thymic-dependent T cell production pathway secures stable regeneration of fully mature T cells, seeking strategies to enhance thymic regeneration should be a key(More)
OBJECTIVES To assess the clinical features, pathologic findings, postoperative results and the effects of immunosuppressive therapy in patients with Behçet's disease (BD). METHODS We reviewed the postoperative course of the 9 BD patients who underwent a total of 17 aortic valve replacement procedures with prosthetic valves. RESULTS Histological(More)
OBJECTIVES Pulmonary arterial hypertension (PAH) is a major cause of mortality in connective tissue disease (CTD). The survival rates and mortality-predictive factors of a nationwide registry of Korean patients with CTD-PH measured by echocardiography were determined. METHODS Patients with CTD-PH were enrolled between April 2008 and December 2012.(More)
AIMS This study aimed to assess the beneficial effects of the concurrent administration of cilostazol and methotrexate (MTX) on the synovial fibroblasts obtained from patients with rheumatoid arthritis (RA), and in a mouse model of collagen-induced arthritis (CIA). MAIN METHODS Production of TNF-α, IL-1β, IL-6 and MCP-1 on synovial fibroblasts from RA(More)
A case of Mycobacterium avium arthritis in a 39-year-old female patient with mixed connective tissue disease (MCTD) was reported. An extra-articular abscess had formed outside the knee joint and extended down the calf. A culture was taken of the abscess and synovial fluid disclosed Mycobacterium avium. This was resistant to most anti-tuberculosis agents. A(More)
Cavitation in the nozzle is known to have influence on the liquid jet. In order to investigate the influence of cavitation, the experiment was conducted with a set of elliptical nozzles of approximately same area of cross section but varying orifice aspect ratio. Each of nozzle made of acryl for visualization. The measurements obtained for the elliptical(More)
Primary antiphospholipid syndrome (APS) is a disease producing vascular thrombus with antiphospholipid antibody without association with autoimmune diseases as systemic lupus erythematosus. Retinal vein occlusion is a rare vascular manifestation in primary APS. We describe 2 cases of primary APS presenting with developing blurred vision. Each had central(More)
Purpose In this nationwide 5-year longitudinal population-based study, we aimed at investigating the incidence of lung cancer among patients with interstitial lung disease. Materials and Methods Data was collected from the Korean National Health Insurance Research Database from 49,773,195 Korean residents in 2009. 13,666 patients with interstitial lung(More)
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