whereas low-dose uv-b irradiation ( 4 x 100 or 200 j/m2 ) had little , if any , effect on either ia+ec or thy-1+dec , high-dose uv-b ( 4 x 700 or 1000 j/m2 ) or puva treatment led to an almost complete disappearance of both surface characteristics .
C3496194
ec
C0014520
thy-1+dec