on the other hand , welch ( 18 ) in his study of experimental pneumonia , says : `` '' many inoculations of cultures of virulent pneumococci into the trachea and lungs of dogs have been made in my laboratory by dr. canfield and myself , but in no instance were we able to produce an inflammation of the lungs which we were willing to identify with acute lobar pneumonia as found in human beings . '' ''
C0024109
lung
C0032285
inflammatio