mental
deficiency
primary mental deficiency先天性心智不足
secondary mental deficiency后天心智不足
American Association on Mental Deficiency美國智力低下協會;力低下協會;美國心理缺陷協會
American Assoclatlon for Mental Deficiency國智力缺陷學會
American Association for Mental Deficiency美國智力缺陷學會
mental deficiency act智力缺陷法案
mental deficiency amentia智力缺陷
children with mental deficiency智力殘疾兒童
identification of mental deficiency智力缺損鑒別