H. Wiland

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Testability, and design for testability, are widely discussed practical issues in software engineering, especially in protocol engineering. Existing definitions (or cir-cumscriptions) of testability seem to be either quite vague, or, if more or less formal , then dedicated only to very special system models. Testability is usually decomposed into aspects(More)
BACKGROUND Clinical algorithms for the workup of celiac disease often recommend the use of serologic assays for initial screening, followed by duodenal biopsy for histologic confirmation. However, the majority of duodenal biopsies submitted to pathology for "rule out celiac" are negative. The objective of this study was to determine the underlying causes(More)
AIM Anal intraepithelial neoplasia precedes the development of anal squamous cell carcinoma. Detection of the lesion is essential to management. This paper describes a prospective study to detect and ablate anal squamous intraepithelial lesions (SILs) using white light narrow band imaging (NBI) and NBI with acetic acid (NBIA). METHOD Sixty patients with(More)
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