Preface 
XLX 
prised of new developments and give our nation a forum 
to continue to discuss and evaluate these important is- 
sues. As we go forward, I hope we will always be guided 
by both intellect and he^, by both our capabilities and 
our conscience. 
It has been our goal in the present report, as in all of our 
work, to live up to these high hopes and noble aspirations. 
LEON R. KASS, M.D. 
Chairman 
PRE -PUBLICATION VERSION 
