ADHD-PI is an attention-concentration<unk>  that has everything in common with other forms of ADHD except that it has fewer<unk>  or impulsivity symptoms and has more directed attention fatigue symptoms.
Attention deficit hyperactivity disorder predominantly inattentive
Recurrent brief depression
Attention deficit hyperactivity disorder controversies
Societal and cultural aspects of Tourette syndrome
Autism – Tics, AD/HD, and other Comorbidities
Depression in childhood and adolescence
ADHD Grown Up
Conditions comorbid to autism spectrum disorders