1. B. W. Henderson and T. J. Dougherty,Photochem. Photobiol., 1992,55, 145; (b) T. J. Dougherty,Photochem. Photobiol., 1993,58, 895; (c) D. Dolphin,Can. J. Chem., 1994,72, 1005.
2. Organic Photochemistry and Biology, Eds. W. M. Horsporl and P. -S. Song, CRC Press, Boca Raton, 1995, 1374; 1379; 1384.
3. Photodynamic Therapy of Neoplastic Disease, Ed. D. Kessel, CRC Press, Boca Raton, 1990,2; (b)Photodynamic Therapy, Basic Principles and Clinical Applications, Eds. T. J. Dougherty and B. W. Henderson, Marcel Dekker, New York, 199.
4. R. Bonnet,Chem. Soc. Rev., 1995, 19.
5. D. Kessel,Photochem. Photobiol., 1997,65, 387; (b) S. R. Wood, J. A. Holroyd and S. B. Brown,Photochem. Photobiol., 1997,65, 397; (c) K. Berg and J. Moan,Photochem. Photobiol., 1997,65, 403; (d) D. Kessel, Y. Luo, Y. Deng, and C. K. Chang,Photochem. Photobiol., 1997,65, 422.