Article 105
1. The costs entailed in administrative checks and in medical examinations, observations, doctor's visits and checks of all kinds necessary for the award, provision or review of benefits, shall be refunded by the institution on whose behalf they were made to the institution which has been responsible therefore, on the basis of the charges applied by the latter institution. 2. However, two or more Member States or the competent authorities of such Member States may agree on other methods of refund, in particular on a lump-sum basis, or they may waive all refunds between institutions. Such agreements shall be entered in Annex 5 to the implementing Regulation. Agreements in force on the day preceding the entry into force of the Regulation shall continue to apply provided that they are included in the said Annex. Common provisions for the payment of cash benefits