Safety and antitumor activity of recombinant soluble Apo2 ligand. - Ashkenazi,A.; Pai,R.C.; Fong,S.; Leung,S.; Lawrence,D.A.; Marsters,S.A.; Blackie,C.; Chang,L.; McMurtrey,A.E.; Hebert,A. (J Clin Invest, 1999)