You had better go back and check your facts. The fact that the Public Health Service worked so hard to access all of the cadavors for autopsy proves the experimential nature. One little known fact is that blood plasma collected from these victims was used in a syphilis antibody test patented by Johns Hopkins researchers. That would imply that these men were being used as cattle by the medical research establishment.
These medical research crimes continued. Check out the high titre Edmonston Zagreb measles vaccine experiment conducted on 711 African American and Hispanic babies carried out in Los Angeles between 1989 and 1991. The same vaccine killed 1 of every 13 babies in a Senegalese trial years earlier, according the The Lancet, Oct '88.
Don't get me started about AIDS experiments on Blacks around the world, from Los Angeles to Kampala.