UC-07, UC-08, UC-09, UC-10, UC-11: *"From the first encounter until 1 year after surgery"* == Retrospective and limited prospective data Should the surgery be represented as event or activity?
UC-07, UC-08, UC-09, UC-10, UC-11: "From the first encounter until 1 year after surgery" == Retrospective and limited prospective data
Should the surgery be represented as event or activity?