sera from 64 dh patients , 67 randomly selected normal control subjects , 29 histocompatibility locus antigen ( hla ) b8/dr3/dqw2 controls , and 12 psoriatic patients were tested for iga binding to various substrates , including dermal and epidermal extracts , fibroblast and keratinocyte supernatants , monkey esophagus sections , and whole and saline-split normal human skin sections .
C0014520
epidermal
C0022567
supernatants