 Hepatitis : During the 1940s the cause , method of communication and treatment of infectious hepatitis was not well understood . Experimentation began with COs working at psychiatric hospitals and was expanded to a major research project with 30 to 60 test subjects at the University of Pennsylvania and Yale University . The men were inoculated with infected blood plasma , swallowed nose and throat washings and the human body wastes of infected patients , and drank contaminated water . 
 Hepatitis : During <a href='None' title='1'><mark>the</mark></a><a href='negative_concord' title='2'><mark>1940s</mark></a> the cause , method of communication and treatment of infectious hepatitis <a href='negative_concord' title='3'><mark>was</mark></a> <a href='negative_concord' title='4'><mark>not</mark></a>well understood . Experimentation began with COs working at psychiatric hospitals and was expanded to a major research project with 30 to 60 test subjects at the University of Pennsylvania and Yale University . The men <a href='uninflect' title='5'><mark>were</mark></a> inoculated with infected blood plasma , swallowed nose and throat washings and the human body wastes of infected patients , and drank contaminated water . 
Hepatitis : durin no 1940s the cuz , method of communication and treatment of infectious hepatitis ain't well understood . Experimentation began wid COs working at psychiatric hospitals and was expanded to a major research project wwid30 to 60 test subjects at the University of Pennsylvania and Yale University . da men was inoculated with infected blood plasma , swallowed nose and throat washings and tdahuman body wastes of infected patients , and drank contaminated water .