Material and Method
The protocol was reviewed and approved
by the Ethical Review Committee of the Faculty of
Medicine, Ramathibodi Hospital, Mahidol University.
The present study was conducted at the Division of
Dermatology, Ramathibodi Hospital for 2 weeks in
March 2005. The temperature during the test period
varied from a low temperature of 19-25o
C to a high
temperature of 34-37o
C.