" campaign - معلومات للآباء حول النمو وإعاقات النمو في مرحلة الطفولة المبكرة* NINDS Pervasive Developmental Disorders Information Page* NICHCY fact sheet on Pervasive Developmental Disorder (ملاحظة: "ليس" في المجال العام)* Information about Pervasive Developmental Disorders "مركز ييل لإعاقات النمو"* http://childstudycenter.yale.edu/autism/pddnos.html* http://www.medicinenet.com/pervasive_development_disorders/page3.htm#treated
" campaign - Information for parents on early childhood development and developmental disabilities* NINDS Pervasive Developmental Disorders Information Page* NICHCY fact sheet on Pervasive Developmental Disorder (note: "not" in the public domain)* Information about Pervasive Developmental Disorders "Yale Developmental Disabilities Clinic"* http://childstudycenter.yale.edu/autism/pddnos.html* http://www.medicinenet.com/pervasive_development_disorders/page3.htm#treated