Enrollment should be competitive. If the subject recruitment rate is lower than expected at one centre and higher than expected at another, planned allocation numbers should be transferred from the centre with low subject recruitment to a centre with high recruitment where subject inclusion is expected to be completed earlier than planned. This will be done to help ensure that subject enrollment is completed as planned.
Ja tomu rozumim ze je to vyberove ale ze je tam taky casovy element (kdo driv prijde, ten driv mele - usmev)