Gianluca Brero

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In the first part the authors report a nosological review of the obstructions of the bladder neck and urethra in childhood and present the most typical radiological aspects of the most important obstructive uropathies. In the second part they illustrate their cases, that include 11 patients between 0 and 10 years, of which 4 males, with urethral valves; 2(More)
— Several strategic interactions over social networks display both negative and positive externalities at the same time. E.g., participation to a social media website with limited resources is more appealing the more of your friends participate , while a large total number of participants may slow down the website (because of congestion effects) thus making(More)
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