Lets examine the evidence:
Evidence that dcvax works? Provided at multiple time points.
Evidence that dcvax is unsafe? 100% safety record thus far.
Conclusion?
If i were a gambler, based on probability, i would choose halt for efficacy over safety without question.
Sorry, pyr, if you want to make money on puts or short sales, you should have picked a better strategy for scaring longs. Safety is NOT AN ISSUE.
As they say where i come from:
?? ??????