@book{25594,
	author = {Gomer, Charles J., ed.},
	title = {Future Directions and Applications in Photodynamic Therapy},
	publisher = {SPIE},
	year = {1990},
	series = {Proceedings of SPIE; V. 10306},
	address = {Washington, USA},
	url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/10306}
}