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    Skin expansion in head and neck reconstructive surgery

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    We used a tissue-expansion technique to achieve softtissue reconstruction in congenital and acquired defects of head and neck. One hundred and fifty-five head and neck reconstructions have been performed, with a 6 percent rate of major complications. We present our planning and surgical approach for single areas. From a technical point of view, the only major difference from the rest of literature is the approach to the problem of periprosthetic capsule. In fact, we believe that complete removal of the capsule, which can be achieved without vascular risk thanks to a special technique, is necessary to obtain the best results. © 1992 American Society of Plasti

    Una metodica additiva autoplastica per la correzione della ipotrofia secondaria mammaria con ptosi e degli esiti di mastectomia sottocutanea.

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    Prosthetic correction is undoubtedly the method of choice in cases of hypotrophy of the breast. However, there are still cases in which autologous additive mastoplasty may represent an effective alternative procedure: 1) when the patient refuses to agree to the insertion of foreign material in spite of a strong desire for corrective treatment; 2) in certain cases of breast reconstruction after subcutaneous mastectomy with the intent of obviating possible drawbacks due to the prosthesis, in the first place contraction of the capsule; 3) in the case of excessively extensive excision of tissue in the course of mastoplasty done for cosmetic reasons without resorting to the insertion of a prosthesis; 4) in patients with autoimmune disorders; 5 ) when the patient develops a psychologic refusal of the prostheses while preserving a strong determination to maintain the increased breast size obtained. These indications are not altogether infrequent and have been strengthened by recent dehates on the supposed carcinogenicity of silicone. These considerations have spurred the authors to reconsider a technique which still has a role in the field of surgical reconstruction of the breast, in spite of its inherent limitations (more extensive scars, smaller increase in size)

    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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