Pyoderma gangrenosum (PG) is an inflammatory condition characterized by chronic cutaneous ulcerations. There are three proposed PG diagnostic frameworks (Su, PARACELSUS, Delphi); however, they lack consensus, and their performance has not yet been validated in a well-defined cohort of patients with PG. In this cross-sectional retrospective study, we sought to evaluate compare the concordance th...

This classic discusses the original publication “Treatment of acromioclavicular injuries, especially complete separation” by Weaver and Dunn, which collaborated to develop a technique for joint reconstruction in 1972. Their surgical described resection 2 cm distal clavicle transfer acromial end coracoacromial ligament into medullary canal clavicle. (modified) Weaver-Dunn procedures have been re...

THISARTICLE EXAMINES THE ECONOMIC BEHAVIOR OF ACADEMIC RESEARCH LIBRARIES. It argues that academic research libraries seek to maximize universities' utility by expanding library collections. The log-linear model that reflects the relationship between library collections and prestige of universities was formulated, tested, and proved to be the best fit of the data. The regression results show th...