SPIE Proceedings [SPIE OE/LASE '89, 15-20 Jan., Los Angeles. CA - Los Angeles, CA (Sunday 15 January 1989)] Photodynamic Therapy: Mechanisms - <title>Photosensitizing Efficiencies Of Poryphyrins, Chlorins, And Phthalocyanines.</title>Tromberg, Bruce J.; Kimel, Sol; Roberts, W. G.; Berns, Michael W.; Dougherty, Thomas J. · 1989