%0 Journal Article %T The Structure of the Active Component of Hematoporphyrin Derivative %A Dougherty, T. J. %A Potter, W. R. %A Weishaupt, K. R. %A , %J Porphyrins in Tumor Phototherapy %P 23-35 %D 1984-01-01 %I Springer US %~ DeepDyve