Research Article
Influence of Physiological Parameters on the Production of Protoporphyrin IX in Human Skin by Topical Application of 5-Aminolevulinic Acid and its Hexylester
Mathias von Beckerath,
Petras Juzenas,
Lennart Lofgren,
Li- Wei Ma,
Vladimir Iani,
Zvi Malik and Johan Moan