all pec of h-2b , h-2bc , h-2j , and h-2ja types , irrespective of background genetic constitution , were as susceptible to direct lysis as c57bl/6 pec , but pec of h-2a , h-2d , h-2k , h-2q , h-2s , and h-2u types were not .
C0007634
pec
C1521197
2q