1.   Among advocates for research volunteers, the action dispelled concerns that Koski would not be as aggressive as his predecessor in enforcing federal rules.

2.   Gray plans to compare synesthesia subjects with research volunteers who have learned to make those same associations by practicing them intentionally.

3.   In addition, Collins and Isner said that henceforth research volunteers will be informed about previous adverse events or deaths of patients receiving the treatment.

4.   This is the second time in two years that a research volunteer has died in a medical experiment at a prestigious university.

5.   Hopkins said it was the first time in its history that a healthy research volunteer died.