%0 Journal Article %T A quantitative assessment of protoporphyrin IX metabolism and phototoxicity in human skin following dose‐controlled delivery of the prodrugs 5‐aminolaevulinic acid and 5‐aminolaevulinic acid‐n‐pentylester %A Gerscher, S. %A Connelly, J.P. %A Beijersbergen Van Henegouwen, G.M.J. %A Macrobert, A.J. %A Watt, P. %A Rhodes, L.E. %J British Journal of Dermatology %V 144 %N 5 %P 983-990 %@ 0007-0963 %D 2001-05-01 %I medicine_and_dentistry %~ DeepDyve