"pro-forma sessions" . "pro-forma" . . "pro forma" . "titular" . . "''pro forma'' modeling" . "''pro forma'' session of Congress" . . "''pro forma'' bill" . . "''pro forma'' sessions" . "''pro forma'' session" . "''pro forma'' bills" . "proforma invoice" . "Pro_forma#United_States" . "Pro forma" . "Pro forma#United States" . . . . "pro-forma invoice" . . "Pro forma" . "formality" .