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Antibody response to KLH vaccination. The presence of anti-KLH IgG was analysed by ELISA as described under Materials and Methods. Vaccinations were performed at days 1 and 15. (A) Geometrical mean (+/- SEM) of IgG titres in different fimaporfin dose groups. (B) IgG titres at the different time points in single study subjects in the control (black lines) and the 12.5 µg fimaporfin (red lines) groups.
