� � � � � � � � � � � � � � � � � � � 1 ≥ ≥ ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± • • • • • ≤ • > • < • • FC17PosterBiofronteraDirschkaDaylightPhotodynamic.pdf