which stage of rct should survival be calculated? why should a clinical survival study be done between each stage of chemotherapy? which is the different strategy of survival what is the starting point for survival analysis how long does it take for recurrence free survival when is survival analysis calculated what is the starting point for survival? a. progression free survival b. recurrence free survival c. recurrence free survival d. progression free survival d. survival d. survival e. survival h. recurrence-free survival which is the best starting point for survival analysis what is the starting point of survival analysis for rct when should survival be assessed in a rct at what time point should survival analysis what time point is recurrence free survival when to calculate overall survival what is the starting point of survival which is the better starting point for survival analysis? how is the survival of the patient calculated? what is the starting point and outcome of the recurrence analysis when should overall survival be calculated how is survival calculated in rct how does survival analysis help in a survival study