E&P is Earnings and Profits.
IVA TAX see IMPOSTA VALORE AGGIUNTO TAX.
GPRO is Group Practice Reporting Option used within the US government, e.g. Medicare and US DHHS. A "group practice" is defined as a single Taxpayer Identification Number (TIN) with 2 or more individual eligible professionals (EPs) (as identified by individual National Provider Identifier [NPI]) who have reassigned their billing rights to the TIN.
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