For example, {TAIL ~ personal information} of a participant may be entered into {HEAD ~ an Investigator Database} 106 and subsequently transferred to the Centralized Secure Database 101 so that the information is no longer accessible to the Investigator Database 106 and is never accessible to the Administrator Database 104 
For example , { TAIL ~ personal information } of a participant may be entered into { HEAD ~ an Investigator Database } 106 and subsequently transferred to the Centralized Secure Database 101 so that the information is no longer accessible to the Investigator Database 106 and is never accessible to the Administrator Database 104
OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH