Institution: | 1. Department of Geriatric Medicine, Karolinska Institute, Huddinge Hospital, S-141 86, Huddinge, Sweden 2. Deutsches Institut für Fernstudien, Universit?t Tübingen, D-7400, Tübingen, FRG 3. Division of General Medicine, Department of Medicine, The University of Texas, Health Science Center at San Antonio, 7703 Floyd Curl Drive, 78284-7879, San Antonio, TX, USA
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