A.Epidermis is treated with salts of heavy metals
B.Dermis is treated with salts of heavy metals
C.Both are treated with salts of heavy metals
D.None of them are treated with salts of heavy metals
A.Epidermis is treated with salts of heavy metals
B.Dermis is treated with salts of heavy metals
C.Both are treated with salts of heavy metals
D.None of them are treated with salts of heavy metals