Human AB serum

[komisarj at WRSMTP-CCMAIL.ARMY.MIL]

     I am asking this question for people who lack access to Bionet.  They 
     are culturing human lymphocytes for about 7 days and then using them 
     for T cell proliferation, CTL, and cytokine assays.  They have been 
     using AB serum from Sigma, but the responses are low.  Does anyone 
     know of another source of human AB serum?
        
                                  
                                          Jack Komisar