Roles of Porphyrin and Iron Metabolisms in the δ‐Aminolevulinic Acid (ALA)‐induced Accumulation of Protoporphyrin and Photodamage of Tumor CellsYoshiko Ohgari, Shigeru Taketani, Taeko Miyagi et al.|Photochemistry and Photobiology|2011Cited by 33