Some psychiatrists , Dr. Lieberman among them , noted that other studies of S.S.R.I. ' s in children had also failed to find large differences in effectiveness between the drugs and placebos .
Lieberman and other psychiatrists noted that other studies of SSRIs in children also have failed to find large differences in effectiveness between the drugs and placebos .
a classification method used to describe the probability of data belonging to a class based on the data's attributes