He may have done a typo of sorts in his notes. The change of ten comes from study participants, not trial locations.
Participants were originally listed as 189 and the final number ended up at 199.
In Reply to 'kfcyahoo' farrell90,
Not sure where you saw that. Last update dated 2/13/18 lists 34 sites.
(14) states with one study site each(Arizona,Geogia,Illinois,Indiana,Kansas,Kentucky,Missouri,Nevada,New Hampshire,New Jersey, New York,Oregon,Rhode Island,Virginia.
(4) states with two sites each- Arkansas,Colorado,Florida,Michigan