Piero V. Valli

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Physical as well as psychological stress increases the number of circulating peripheral blood NK cells. Whereas some studies found a positive correlation between exercise and NK cell counts and cytotoxic activity, others showed that, for example, heavy training leads to a decrease in per cell NK cytotoxicity. Thus, the impact of exercise on NK cell function(More)
Duodenal gastrointestinal stromal tumors (GIST) are per se infrequent and are exceptional in children or young adults. So far, only 2 cases of pediatric duodenal GISTs have been published. Here we report on the case of a 19-year-old female patient who was admitted in hemorrhagic shock due to arterial bleeding of a duodenal GIST located in immediate(More)
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