Stine Regin Wiegell

Morphine gel 0.3% does not relieve pain during topical photodynamic therapy: a randomized, double-blind, placebo-controlled study.

Merete Haedersdal, Peter Alshede Philipsen, Hans Christian Wulf, 2006, Acta dermato-venereologica.

Pain associated with photodynamic therapy using 5-aminolevulinic acid or 5-aminolevulinic acid methylester on tape-stripped normal skin.

Hans Christian Wulf, H. Wulf, S. R. Wiegell, 2003, Archives of dermatology.