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    Neuroendocrine Neoplasia Management: New Approaches for Diagnosis and Treatment

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    This book provides the most recent update on the management of neuroendocrine neoplasia (NEN), a term covering all tumors of various organs and/or with a particular histology, including MEN (multiple endocrine neoplasia) related tumors, MiNEN (mixed neuroendocrine-non-neuroendocrine neoplasms), NEC (neuroendocrine carcinoma) and Merkel’s carcinoma. NENs are heterogeneous in their biology, clinical presentation and prognosis, showing a great variability in aggressiveness and therapy response. As a result, their treatment is based on a large spectrum of options. The standard therapies are surgery in early disease, various loco-regional procedures in certain conditions and mostly of a palliative nature in metastatic disease. At present, thanks to our increased understanding of molecular signaling pathways, several pharmacological approaches can be used in patients with advanced NENs. Somatostatin analogs display both anti-tumor effects and symptom control. Novel peptide-radio-receptor treatment (PRRT) is used in patients with well differentiated tumors. The agents targeting angiogenesis and/or PI3K/AKT/mTOR pathway, alone or in combination with analogues, have provided encouraging results in advanced disease. The first part of the book focuses on the history, epidemiology and the most relevant scientific achievements, covering the discoveries in genetic and molecular biology, the endoscopic techniques with guided biopsy, and the metabolic imaging with hybrid PET/CT and MRI/CT. It particularly highlights the emerging strategies in therapy, surgery and mini-invasive surgery as well as loco-regional and systemic treatments, including targeted therapy and/or biological therapies. The second part then explores the management of NENs of various anatomical origins and/or with peculiar biology. It describes the range of the current options and the most relevant results from the clinical trials. This informative book provides valuable insights for all those interested in the management of neuroendocrine neoplasia

    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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