� � � � � � ± � � ≤ � � � � � � � � � � � Follow-up 1st PDT cycle PDT-1 PDT-2 1 week PDT-3 PDT-4 1 week 2nd PDT cycle 3 m 6 m 24 m 60 m 2020 if lesions remain 0 10 20 30 40 50 60 70 80 � � � � 12 m 36 m Follow-up � � � � FC17PosterBiofronteraMortonBF200ALAPhotodynamicTx.pdf