Kanner Leo
Kanner was the first physician in the United States to be identified as a child
Psychiatrist and his first textbook, Child Psychiatry in 1935, was the first English language textbook to focus on the psychiatric problems of children. His seminal 1943 paper, "Autistic Disturbances of Affective Contact", together with the work of Hans Asperger, forms the basis of the modern study of autism.