one or more investigator databases communicatively connected to said centralized secure database whereby information residing in said one or more investigator databases is periodically transferred to said centralized secure database and said information is not shared directly between {HEAD ~ any} of said {TAIL ~ one or more investigator databases} 
of
one or more investigator databases communicatively connected to said centralized secure database whereby information residing in said one or more investigator databases is periodically transferred to said centralized secure database and said information is not shared directly between { HEAD ~ any } of said { TAIL ~ one or more investigator databases }
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 OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL