background: injection of local anesthesia is one of the most important reasons for development of avoidance behavior in children. efforts have been performed to decrease pain perception of injection. the present research evaluated the effect of cooling the injection site on pain perception before infiltration of local anesthetics. materials and methods: a prospective single-blind crossover clin...

background tennis elbow (te) is a common myotendinosis. it was first described by runge in 1873; different modes of treatment are used in management of te. objectives this study aimed to report the results of autologous blood injection (abi) in the treatment of te. materials and methods a prospective case study was performed to evaluate the results of abi in the management of te. the level of p...

While much has been written on the successes and failures of industrial policies, systematic evaluation of their effects remains difficult. This paper presents an approach based on a combination of cluster and discriminant analysis, applied to time-series of the rate of change of average wages by industry. We apply this approach to a Korean data set that may be one of the most comprehensive nat...