Expected Events (2 Arm)
This program calculates the expected number of events for a planned study.
It allows the user to specify a follow-up period after the close of study accrual.
The program default presents a table of results.
Alternatively, user can calculate the expected proportion of events at a given time,
or the time at which a given proportion of events have occurred.
The program will allow the user to specify a percentage of patients that have no risk ('Cures').