1,721,099 research outputs found

    Statistic analysis of pediatric urological operations for patients under one-year-old

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    総手術数の内で15歳以下の小児症例は約50%を占めており, 1歳未満の症例は全体の2.7%であった.疾患別に見ると, 新生児・乳児期に最も重要なのは先天性尿路通過障害であり, このような症例の治療方針を決める際には周産期の腎機能と尿路動態の変化を熟知しておく必要があるA statistic analysis was made on urologic patients under 1 year of age operated at our Department between July, 1973 and December, 1989. The incidence of patients under 1 year of age was 2.7% of the total patients operated on during the same period. Prenatal diagnosis has been responsible for increasing frequency of perinatal urologic abnormalities. Congenital urinary tract obstruction accounted for the most important disorder encountered in this age group

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed

    HISTOLOGIC STUDY OF THE DYSPLASTIC KIDNEYS AND THE URETERS

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    Clinicopathologic study of 12 dysplastic kidneys with special reference to ipsilateral ureters and contralateral kidneys was reported. (1) The clinical diagnoses were followings; VUR 1, posterior urethral valve 1, multicystic kidney 1, distal ureteral atresia 1, double ureter with ureteral atresia 1, ureteral ectopy 1, and ectopic ureterocele 6. (2) The presence of dysplastic elements such as primitive duct, metaplastic cartilage, cysts and nerve bundles were the histologic features of the kidneys. (3) The muscle bundles were hypoplastic in 4 ureters, hypertrophic in I, dysplastic in 2, normal in 2. One ureter with ectopic ureterocele was normal in the middle one third and dysplastic in the upper and lower portions. (4) Contralateral abnormalities were encountered in 8 cases. The finding of our study suggests that renal dysplasia is not a single malformation of metanephric tissues but rather the group of malformations of the whole urinary tract

    Yang Ci-hu 楊慈湖

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    Chu Chien-chih, Li Chih

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