On the mechanism of the phototoxic action of haematoporphyrin derivative towards tumour cellsTšekulajeva, Ludmilla; Ševtšuk, Igor; Tšekulajev, VladimirProceedings of the Estonian Academy of Sciences. Biology. Ecology2005 / p. 83-119 : ill https://artiklid.elnet.ee/record=b2345867*est