122 / 1674
•
Level of evidence increases
•
Longer follow up data
•
Risk groups are defined
•
Logistical benefits
•
Most trials are closed
Background: possible approaches
|
|
122 / 1674
122 / 1674
•
Level of evidence increases
•
Longer follow up data
•
Risk groups are defined
•
Logistical benefits
•
Most trials are closed
Background: possible approaches