Affiliation: | (1) Department of Medicine, University of Texas Health Science Center, Audie L. Murphy Memorial Veterans' Administration Hospital, San Antonio, Texas, USA;(2) Present address: Department of Pediatrics, School of Medicine, Kyung Pook, National University, 52, Samduk - 2 GA, Joong-gu, 700-412 Taegu, Republic of Korea;(3) Division of Nephrology, Department of Medicine, University of Texas Health Science Center, 7703 Floyd Curl Drive, 78284 San Antonio, TX, USA |