TY - EJOUR DO - 10.1076/soph.16.4.181.10299 T1 - Photodynamic Therapy of Age Related Macular Degeneration: History and Principles DA - 2002 AU - van den Bergh, Hubert JF - Seminars in Ophthlmology SP - 181-200 VL - 16 EP - 181-200 ID - 162994 ER -