1. Photodynamic reactions in photomedicine;Spikes,1982
2. Photodynamic therapy;Dougherty;J. Natl. Cancer Inst.,1998
3. The photodegradation of porphyrins in cells can be used to estimate the lifetime of singlet oxygen;Moan;Photochem. Photobiol.,1991
4. Modifications of the acid–base status of the internal milieu of tumors;Gullino;J. Natl. Cancer Inst.,1965
5. Acid pH in tumors and its potential for therapeutic exploitation;Tannock;Cancer Res.,1989