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    Synovial sarcoma enzyme histochemistry of a typical case

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    A typical case of biphasic synovial sarcoma was studied using enzyme histochemistry. A marked difference between the staining characteristics of the spindle cells and the epithelial-like cells was demonstrated by reactions for various hydrolytic enzymes. The epithelial-like cells exhibited a strong reactivity for alkaline phosphatase, acid phosphatase, adenosine triphosphatase and nonspecific esterase, whereas spindle-cells were completely unreactive when tested for these enzymes. This is, to our knowledge, the first report demonstrating differences in the enzymatic pattern of the two cell populations which compose synovial sarcoma

    Immunohistochemistry in bone marrow diagnosis [letter]

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    Immunohistological approach to bone marrow trephine biopsies demonstrated a clear role in the diagnosis of neoplastic hematological disorder

    T-cell-rich B-cell lymphoma

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    Immunohistochemical and molecular definition of a special type of lymphoma with a prevalence of non-neoplastic T-cells over the neoplastic, B-cell

    Malignes Lymphom mit primaerer Blasenlokalisation

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    The malignant lymphoma with primary localisation in the urinary bladder rarely occurs in the clinic. The therapy essentially depends on the position and the extension of the tumour. Despite their malignity these tumours seem, however, to have a relatively good prognosi

    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
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