Press Release: Opinion of Advocate General Ruiz-Jarabo. Case C-157/99. B.S.M. Geraets-Smits v Stichting Ziekenfonds and H.T.M. Peerbooms v Stichting CZ Groep Zorgverzekeringen. The Advocate General proposes that the Court uphold the system under which prior authorisation is necessary for a patient to be hospitalised in another Member State at an establishment which has not concluded an agreement with the patient’s sickness insurance fund