In vitro and in vivo activation of hypericin with the incoherent light source PDT 1200 SOA (520 - 750 nm) and with solar simulated radiation (290 - 2500 nm) - Schempp,C.M.; Simon-Haarhaus,B.; Heine,A.; Schöpf,E.; Simon,J.C. (Photodermatol Photoimmunol Photomed, 1999)