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DISCUSSION 
Chairman Frank J. Veith : I'd like to com- 
mend Dr. Hardy for a beautiful presentation. 
His laboratory has continued to make many 
outstanding contributions. Are there any ques- 
tions or discussion? 
Peter Geis, Colorado General Hospital, 
Denver: Do you pretreat with antilymphocyte 
serum and prednisone before your homografts? 
And have you individualized the postoperative 
doses of prednisone? 
Dr. Hardy: We used to pretreat, but we 
found that it made little difference and we no 
longer do. At that time, we were also using 
Imuran. We now simply start prednisone and 
ALS treatment immediately after transplanta- 
tion, and do not vary the dose. 
Dr. Geis: What dose of prednisone do you 
use? 
