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[2] UNIV PERUGIA, CHIRURG CLIN R, I-06100 PERUGIA, ITALY
[3] UNIV PERUGIA, MALATTIE INFETT CLIN R, I-06100 PERUGIA, ITALY
[4] PRESIDIO OSPED USL 12, TERNI, ITALY
[5] UNIV CATTOLICA SACRO CUORE, IST ENDOCRINOL MOL, OSTET & GINECOL CLIN, I-00168 ROME, ITALY