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BioMed Research International
Volume 2013 (2013), Article ID 585729, 6 pages
Long-Term Effects of Nilvadipine against Progression of the Central Visual Field Defect in Retinitis Pigmentosa: An Extended Study
1Department of Ophthalmology, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Japan
2Department of Ophthalmology, Sapporo Medical University, S1W17, Chuo-ku, Sapporo 060-8556, Japan
Received 17 August 2013; Revised 24 September 2013; Accepted 27 September 2013
Academic Editor: Atsushi Mizota
Copyright © 2013 Mitsuru Nakazawa et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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