Not exactly a robust design.

These major obstacles to structure prediction likely must be solved before robust design of active CPs can be reliably achieved.

Conclusions: Randomized trials in "real world" settings represent the most robust design available to test care improvement strategies.

More robust design and methodology should be used in future research, in particular, the use of valid and reliable outcomes measures.

Nine years of sampling efforts, under the robust design framework, provided 1223 unique captures with an 18·3% recapture rate.