1 . OFFICIALS - SOCIAL SECURITY - MEDICAL EXPENSES - ORDINARY AND SPECIAL REIMBURSEMENT - BASIS OF EACH ( STAFF REGULATIONS , ART . 72 ( 1 ) AND ( 3 )) 2 . OFFICIALS - SOCIAL SECURITY - MEDICAL EXPENSES - SPECIAL REIMBURSEMENT - CALCULATION - PROCEDURE ( STAFF REGULATIONS , ARTS 64 AND 72 ( 3 ))