00333nam a2200133 a 450000500170000008200200001710000060003711000210004324500400006426000240010430000240012871000240015271000230017620251203091015.0  a612.64,bD, imm  d_  aGill, Thomas, J.  aImmunoregulation and fetal survival  aNew YorkbOUPc1987  axviii, 324p, 22 cm.  aWegmann, Thomas, G.  aNisbet-Brown, Eric