 Common cold and atypical pneumonia : A hundred CPS men participated with tests such that they inhaled or drank throat washings from soldiers with colds and pneumonia . This research proved that colds and some types of pneumonia are cause by a virus , not bacteria . 
 Common cold and atypical pneumonia : A hundred CPS men participated with tests such <a href='null_relcl' title='1'><mark>that</mark></a>they inhaled or drank throat washings from soldiers with colds and pneumonia . This research proved that colds and some types of pneumonia are cause by a virus , not bacteria . 
Common cold and atypical pneumonia : A hundred CPS men participated with tests such they inhaled or drank throat washings from soldiers w/ colds and pneumonia . This research proved dat colds and some types of pneumonia are cause by a virus , not bacteria .