Author(s) : Walaiorn Pratchyapruit, Niramol Vashrangsi, Hachiro Tagami, (1) 420/7 Institute of Dermatology, Rajavithi Road, Phyathai, Rajathevi, Bangkok, 10400 Thailand ; (2) Dermatologic Department, Tohoku, University School of Medicine, Sendai, City, Miyagi Prefecture, Japan and visiting lecturer at the Institute of Dermatology, Bangkok, walaiorn@health.moph.go.th. |