when cryostat sections of fresh-frozen normal human skin were treated with either of 4 bullous pemiphigoid sera containing complement-activating anti-basement membrane zone antibodies and subsequently incubated at 37 degrees c with normal human peripheral blood leukocytes and fresh human serum , leukocytes attached to 96 % of the basement membrane zone in 100 % of sections .
C0009498
complement
C0229671
serum