Symptoms of the disorder include neurological impairment, dementia, retardation of growth, and hyperammonemia. Iron-deficiency anemia can cause mental retardation and growth insufficiency in children. This can produce mental retardation and other disorders. This mutation results in skeletal, craniofacial abnormalities, mental retardation, and short stature. This can cause symptoms such as mental retardation, abnormal gait and posture, and delayed growth. This is followed by seizures, growth retardation and cognitive and motor impairment. Females with one copy of the mutated allele show symptoms of severe mental retardation. This can cause fetal growth retardation. Imipramine had a beneficial effect in patients with depression who showed mental and motor retardation. The practice is thought to cause severe organ damage, including mental retardation. It was intended to identify mental retardation in school children. Toole was often designated as suffering from mild mental retardation, with an IQ of 75. The album deals with psychotic states and mental retardation. In people, risks for preterm delivery and intrauterine growth retardation have been associated with exposure. Ritter was responsible for the invention "disguised mental retardation".